APPALLING SERVICE. This company has given the most dreadful service I've ever experienced in 30 years in business. I had a crossed line which took 6 weeks for them to sort out. Call charges were incurred for calls I hadn't made due to the crossed line. After 12 calls and emails I finally thought a credit had been sorted for the incorrect outstanding amount, yet again I have received a bill saying an outstanding amount is due. The ridiculous thing is that every time they decide an amount is overdue they restrict access to my online account so I can't even see where the amount they are asking for has come from! This leaves me with no option but to call them (again) to try to sort it out. Been on hold for 23 minutes now after asking for a supervisor or manager to speak to. Absolutely absurd!