Promotions and rebates

I received my email from Tmobile stating my $200 prepaid rebate was approved. Click on link below to get the card. So I did. Entered my mobile number and my network phone number both, neither worked. Says invalid cannot confirm. Tried multiple times, never works. So I found a phone number to onbe who runs the card given by Tmobile. Called not very reassuring, said he found my info for card and all he can do is send me a check in mail. So I said ok and then the amount on email went from $200 on card to $0. So hopefully I receive my check in mail in 7-10 days. This process is ridiculous for new customers who are promised a rebate. Not good Tmobile do better for your customers if yo want to keep them.