Tmobile costco promos

I recently ordered iPhones through Costco’s T-Mobile promotion and want to make sure I receive all the promised discounts and rebates. Here’s the promotion I was offered per phone: ● $1,200 off each iPhone without a trade-in. ● $250 prepaid card. ● $150 Costco Shop Card. ● Total promotional value: $1,600 per phone. My timeline: ● September 19: Ordered the phones. ● October 7: Activated the phones and transferred our numbers to T-Mobile. Here’s where I’m confused: I contacted T-Mobile support through Facebook, and they told me the rebates are processed automatically and that I don’t need to submit anything. However, based on what I’ve been reading online, I don’t think that’s correct. It seems like at least some of these promotions require a manual rebate submission or promo code. My questions: 1. Does anyone know whether the $250 prepaid card and $150 Costco Shop Card are actually automatic, or do I need to submit rebate claims? 2. If submissions are required, what are the correct promo codes and where do I submit them? 3. Does the submission deadline start from September 19 (order date) or October 7 (activation date)? 4. Has anyone received these promotions without manually submitting anything, as T-Mobile Facebook support claims? 5. Are there any other Costco or T-Mobile promotions that stack with these offers? 6. Is there anything else I should do to ensure I receive the full $1,200 phone discount and $400 in additional rewards? I’d especially appreciate hearing from anyone who signed up through Costco in September 2026 and has experience with these exact offers.