they said card denied for order but same card is autopay.

I am in almost the exact same sitution. Ordered a S22 Ultra on March 13th online after my local store informed me that there were no devices in my metro area and they told me to go to the website. Place my order and got the message that it would ship by March 24th. On April 5th I contact customer service through the chat and the rep says they are on backorder and I should check back in a few weeks. I contact customer service on April 30th and they informed me my order was never processed. Which is odd because I have been getting emails asking me to rate my device on the website. The rep tells me order again online and she will see if it goes through. But now I am being required to pay $900+ down and not $0 down. So the agent tries to place it for me and she tells me I need to pay $700+ today. I couldn't believe it. So finally I ask my rep if it is possible it not allowing us to place the order as $0 down because I already have an order in the system. She said it is possible but my order was never processed, but I explain but I still have an order number and I am getting notifications about the order. She tells me to cancel the order, which it will not let me to do on my end. So she reaches out to the order team to manaully cancel it. After an hour on the phone and 2 hours dealing with this issue she told me to check in 3 days if the order was canceled and to go to the store and buy a phone. So basically back to where I started. 

TL;DR: T-Mobile’s website, ordering system, and customer service training sucks and I will probably no longer be a customer in 7 days.