What is the Magenta Max switch $200/line promo code?

I switched to T-Mobile in mid September 2023. So a few weeks ago. It took 3-4 days to get the codes for my 3 lines that I switched over to T-Mobile. They told me that I would get a virtual prepaid master card and I would get $200 per line switched. So I should be receiving $600. I wouldn't think that it should take this long to get the rebates. I mean they were quick to take my money and hook me up with a phone so why not be that way with your promo that you've promised me and other people. I called last week and the customer service rep said it could take up to 8 weeks. It better not.