Pathetic service

What a regret to have taken a contract with cellc, they are very fast at handing you through to debt collectors, without even giving you a benefit of a doubt. When you try to call them to make payment arrangements after missing few payments they are unable to help. You are first told that your contract is permanently deactivated and they do not know where/who the account was handed over to... fast-forward, I make the payment and sent prove to cellc and still not update their records and it has been months since I settled the bill and still get calls from *** regarding this and the caller no longer says a thing. Can you please get your act together and sort this thing out. This is affecting my credit record and I have disputed it with TransUnion. Can someone from "the legal department call me PLEASE"