Unfair billing

I am extremely frustrated with sun vacation management. I submitted a request to cancel my membership last year. They shared a quote with me which I approved in February 2020. Shortly after that we were in lockdown and my earnings were negatively affected. I requested a payment plan to settle the outstanding amount of R1149 to which they never responded. They continued to bill me even after I signed the cancelation forms. To date they shared a revised invoice which indicate I owe them R13000.

I am baffled by their lack of communication and lack of assistance even during these trying times. I a have never used their facilities and since I made my intension clear about a request for cancelation, I'm surprised that they continue to bill me. I have settled the R1149 and requested for them to finalize my cancelation. I am not holding my breath but it's really frustrating to work with people who treat their clients like this.