I purchased an IPhone 17 Pro max with the 1100 upgrade credit if I changed my plan and traded in my old phone. The information regarding trade ins says I have 30 days to trade in my phone but since the IPhone 17 Pro Max is backordered I may not receive it in 30 days, can I get an extension until the new Pro max is delivered? I can’t send in my trade in until I get my new phone.