Yeah, you basically were in a worm hole of some sort...Tmobile phones are NOT allowed to call per minute numbers, or recieve collect calls either. There's no real way to bill it from their end.
When I worked with TMo, there were a few lucky people who could get through on those type of lines, and it was simply because the system processed the call the same as it would process a call to your mother, or to a friend, but it will only go on for so long before the system will correct itself, those are a different type of call, and then there's nothing you can do about it, but keep trying. Eventually the system may let you back in.