Yes—request cancellation and a refund now, keep the old SIM unactivated, and order the S26+ bundle only after Mint confirms the old order will not block your new-customer eligibility.
“I bought a Mint Mobile SIM 5 days ago before arriving in the US, but my Poco F6 isn't compatible. I want to get the S26+ deal from Mint's website instead. Since the SIM is in my phone but not activated, should I ask for a refund and reorder?”
Summary
You still have a manageable path because the old SIM has not been activated. The difficult point is narrow: inserting it means you cannot rely on Mint’s clearly published unopened-SIM return rule, so approval must be confirmed before you reorder.
Your route depends on where you bought the original SIM, but in every case you should leave it unactivated while resolving the old order.
If you bought the original plan directly from mintmobile.com, submit Mint’s refund form now and answer truthfully that the SIM was not activated. Mint’s service-plan rule covers direct purchases and requests within seven calendar days of activation, but its published text does not guarantee your opened, pre-activation situation; obtain cancellation and confirmation before paying for the replacement ([Mint Return Policy](https://www.mintmobile.com/return-policy/)).
Mint’s direct refund guarantee does not cover a purchase outside mintmobile.com. Leave the SIM unactivated and use the original seller’s return process immediately ([Mint Return Policy](https://www.mintmobile.com/return-policy/)).
Do not activate merely to start Mint’s seven-day service-refund clock. The S26+ promotion is limited to bundles, and Mint does not say whether activating the old plan would disqualify you or whether that plan could be reused with the offer ([Mint guarantee FAQ](https://www.mintmobile.com/help/what-is-mints-7-day-money-back-guarantee/); [Samsung offer](https://www.mintmobile.com/devices/samsung-deals)).
The S26+ offer is limited-time, but Mint publishes no end date on the cited pages.
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Watch out for
Next steps
These steps preserve the old SIM’s unactivated status, create a refund record, and prevent the first order from interfering with the S26+ promotion.
Right now
Keep the old SIM unactivated
Remove the SIM from the Poco and do not complete Mint’s activation process. Mint’s contractual deadline is 45 days after purchase, so do not activate merely to seek a refund; preserve the card and packaging while the request is reviewed.
Requirements
Today
Submit the correct refund request
For a direct Mint purchase, complete the form at https://www.mintmobile.com/return-policy/ and choose the service plan/SIM you want returned. Mint says approval is sent by email and that it refunds the amount paid minus shipping and handling within 10 business days. If the purchase was from another seller, use that seller’s return process because Mint’s direct guarantee requires a mintmobile.com purchase.
Requirements
Immediately after submitting
Get Mint’s confirmation before paying again
Call 800-683-7392 or use https://mintmobile.com/chat. Human agents are available daily from 5AM–7PM PST. State: “My physical SIM was opened and inserted but never activated. Please confirm that order MT___ is canceled or refundable and that it does not prevent me from receiving the Galaxy S26+ new-customer offer.” Save the response or chat transcript.
Requirements
After confirmation
Order the S26+ with 12-month Unlimited
Order through https://www.mintmobile.com/product/samsung-galaxy-s26-plus. Select the 12-month : the exact product page generally says a 12-month Mint plan, but the Samsung promotion terms specifically require Unlimited for the $500 instant discount, so Unlimited satisfies both pages. Do not expect the old standalone plan to count toward the bundle unless Mint expressly confirms that in writing.
Requirements
Within 45 days of the new purchase
Activate only the new bundled plan
Complete activation using the SIM or eSIM attached to the S26+ order within 45 days after that purchase. Keep the phone, box, accessories, and documentation intact until you know it works; if it must be returned, Mint says to return it within seven days of delivery and ship it within seven days after initiating the return.
Requirements
Legal sources
These facts come from Mint Mobile’s own Return Policy, Plan Terms & Conditions, Help Center, and Samsung Galaxy S26+ offer pages.
Mint Mobile Return Policy
This is Mint’s governing rule for direct service-plan refund requests and its online refund form.
For Mint Mobile Wireless Service Plans
Refund and cancellation requests can be made for any reason within seven (7) calendar days of activation. The full purchase price and any associated taxes and fees will be refunded, provided that: (i) the Mint Mobile purchase was made directly from mintmobile.com; and (ii) the refund request form (located on this page) was successfully completed. You are not required to physically return the SIM kit in order to cancel your new service activation.
Mint 7-Day Money Back Guarantee FAQ
This establishes why inserting the SIM prevents reliance on Mint’s separate unused-SIM return rule.
Mint 101 — 7-Day Money Back Guarantee
Got an unused SIM card? We’ll honor returns for these within 10 days of purchase. It must be returned in its original unopened packaging and the SIM card must not be activated (condition counts—we aren’t called Mint for nothing).
Mint Mobile Plan T&Cs §4.3
This establishes the conservative deadline for activating any plan, including a promotional plan.
4.3 Activation period
All service plans, including promotional plans and Trial Plans, must be activated within 45 days following the date of purchase. We reserve the right to suspend or terminate any plan or service that is not activated within 45 days following the date of purchase.
Mint Galaxy S26+ Product Page
The exact S26+ listing requires a device and 12-month plan purchase and states the plan’s upfront price.
Limited time, new customer offer. Requires separate purchase of new device on and 12-month Mint plan (sold separately). Plan requires upfront payment of $180 (equiv. $15/mo.). Taxes and fees extra.
Mint Samsung Deals Terms
This is the stricter official offer language requiring a 12-month Unlimited bundle for the $500 discount.
Samsung S26 offer fine print
For a limited time, new customers save $500 instantly on the entire Samsung Galaxy S26 lineup with a 12-month Unlimited plan. Get another $400+ off with eligible trade in. Limited time new customer offer. $500 instant savings requires bundling eligible Samsung Galaxy S26 device w/ 12-month Unlimited plan. $180 upfront payment for 12-mo. Unlimited plan (equivalent to $15/mo.) required, then full-price plan options available.
Mint Contact FAQ
This gives the official channels and hours for resolving the opened, unactivated order before reordering.
If you have a question about your service, please call our Mint support team by dialing 611 from your Mint phone or 800-683-7392, or chat with us at mintmobile.com/chat. Our customer care humans are available 7 days a week 5AM-7PM PST.
Mint Phone Return FAQ
This establishes the short deadline and packaging requirements if the new S26+ must be returned.
Return your phone within seven days of delivery. Please return with the complete original manufacturer’s packaging, in the same condition as sold, with all literature, accessories, instructions, blank warranty cards, documentation and any other items that came with the phone upon delivery. Please note that phones must be sent back within 7 days of a return being initiated.
These are Mint Mobile’s official terms as published on the stated dates; undated offer and help pages were accessed September 16, 2026, and rules and promotions can change.
This is general information about official processes, not legal advice, and SettleKit is not a law firm.
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