i have noticed that pokemon keep going back to my box froim my slot and i have also noticed that when i go to a udse and say decide to send coins it says he is an invalid user becaus it puts it on username instead of player #

thats all hope you can resolve them

The pokemon going from your box to your is a new one to me. I would try to log out and back in to force your account to update when it happens. As for the trades bug, that would be a major problem and I would maybe report that directly to an admin just to get it resolved a bit faster.

Send the Pokemon back to your box and log out and back in. Remake your team and that should fix it. (Fyi when you are loaning make sure to take the Pokemon off your team before sending back as that seems to be the most common cause).
The ID part changed to username as it was easier. You can change that part to ID with the drop down menu.