Poor customer care

Great gym , poor customer care.I was overcharged for my first month joining the gym although I was promised a set amount.Not only have they not corrected it in an entire month I have now been charged again without my issue being resolved and no one has contacted me except for one lousy email , I have given statements and spoken to gym staff and contacted head office without any results.I have tried phoning several times to be told by an automated voice that there is no one available to take my call.