Staff members treating us poorly

We have been handed over i feel the way some of Norman Bissett staff treat a person is unacceptable we make arrangement with one staff member to be phoned over and over again by a different staff member demanding payment and telling us they don't care what we have to say they will continue to phone until monies are paid ??<br> <br> Firstly I feel I'm handed over unfairly after a cell phone contract that was paid upfront 2 years ago ,now they telling me I owe them monies and I'm not even with the network provider anymore . They don't give me a chance to get hold of my old bank to try get a proof of payment or a bank statement I just get told rudely that I must pay the monies.<br> <br>