Gym contract

Gym contract. I have a 2 year contract with planet fitness and due to COVID-19 there were no fees paid for 4 months. My contract was due to end in October but they told me I cannot end my contract because they have extended it for 4 months. First of all I did not agree to this and I cannot afford to pay further for the contract. I have tried to contact them over email multiple times with no response. The only time they ever contact me is to get money from me which they take off my account every month plus more. No one can ever help you at planet fitness branches nor over email. I am completely disgusted and I will never ever support Planet Fitness again. They are completely unprofessional.