Due to covid, I lost my job and was no longer able...

Due to covid, I lost my job and was no longer able to continue my membership. Mind you, I still payed dues for 6 months after covid started despite the club being closed. After attempting to cancel my membership and hearing no response I had to remove my credit card from their system to prevent automatic charges I could not afford. Only after I threatened to escalate the case did they finally respond, yet they require I pay accrued dues since it was "in the bylaws." After I reminded them I had already attempted to cancel months earlier they claimed they had no record in their internal system. They asked that I provide proof despite there being no way for me to access their system after submitting a claim. Since then they have not responded and continue to send me bills. To me, this is a sign of a struggling corporation looking to take advantage of a pandemic to get something for nothing.