Unauthorised debit orders went off my account

My contract had expired. I forgot. I had paid the full amount for this contract upfront. The Consumer Protection Act stipulates that Planet Fitness should have forewarned me about my contract coming to an end "40 to 80 days" before the expiry date. This did not happen and I carried on going to the gym, totally unaware. The gym began taking money off my account without my authorisation or my being aware. I thought the monthly debit order was from another policy. It took me months to realise what was going on. I have tried, for the last five weeks, to interact with Head Office about this. Phoning the customer care line is pointless. Even the one official who I finally got hold of to help me gets no response from Head Office. I have written letters and addressed them to various officials. No answer. This is wrong and *********.