Please clarify

Please help me someone. I found myself in a dire situation as a result of Covid last year where I ended up selling my home to be able to live. In that time I could not make gym payments. As soon as I got on my feet again I contacted Virgin because I would love to join again and they moved my account to the gym in the new area where I reside and its a cheaper monthly amount. I know Lexi is the helpful lady i spoke to she is amazing, she said that I was not liable for the months I could not pay. They are saying when I enter the gym that I owe for a month prior to when I joined, I would like to know why that is. I would think that from when I came back that we would start from then not back dating things. So when I called in today the lady said something to me about R2000 odd? Please tell me how we got from my conversation with Lexi to 2k? I work in a call center and can not always take calls, please mail me if you cant reach me. I would like to just go forward with my new gym and pay the amount agreed on monthly please. If you guys are going to back date things to when I was absolutely destitute and desperate then I would like my contract cancelled please. Thank you