Biggest ********** within Telecoms!!

My mum has been not been receiving any airtime since Aug, yet is being billed every month which in effect is *****! Despite several attempts to rectify the issue by going in to Edgars and calling the Call Centre, this company has made no effort to resolve the issue yet continues to bill my mum. Going by the other reviews on this site relating to RMCS, it seems that this company has a tendency to swindle all of their customers off their hard earned cash! Their standard response is that someone will be in contact which is another outright lie!!