If you use the same proxies as someone else you both (along with anyone else using the same provider) get all their accounts banned.
This is why no one shares proxy providers or tells you who to use. It's harmful to you as well as them.
PS: It's not that hard to find some. Search for a list of banned tq proxies and then search through various proxy sites to find something worth while. Most have a return period of a couple days. If they don't work get your money back and buy from someone else.