Task platform withheld my USDT deposit unless I paid more

I was recruited to complete daily tasks for USDT through a platform associated with Checkaso. After I encountered a so-called Super app, I had to deposit USDT to continue and was told I could withdraw after completing the tasks.

A second Super app then triggered a much larger deposit demand. I asked for my earlier deposit back and to close my account, but the reported customer service response was that I had to keep paying before any withdrawal or refund would be possible.