Useless service from Management at Belairs Virgin Active

I am writing to formally raise a complaint regarding a highly disappointing experience I encountered at Virgin Active Belairs Park in Randburg. My intention was to take out a straightforward gym contract at R300 per month. However, the salesperson insisted on signing us up for a promotional offer, despite our repeated requests to proceed with a standard contract. He assured us that we could revert to the normal contract after two months. When making the initial payment, the salesperson charged us R699 instead of R199 via card machine, which he claimed was an error. He then assured us that we would be refunded. Instead of processing the refund directly, the club waited until the monthly debit order date and attempted to offset the debit amount against the supposed refund — a practice that was never agreed upon. To make matters worse, after the two-month period, we were billed R1,500 instead of the R300 that had been promised post-promotion. Upon contacting the Virgin Active Head Office, we were informed that no downgrade was processed by the salesperson. I escalated this issue to the General Manager at Virgin Active Belairs, who admitted that some salespeople add unnecessary promotional items to boost their commission. He assured us that the matter would be resolved within 7 days. However, it has now been over five weeks with no resolution or response to any of our follow-up emails. This level of service and lack of accountability is unacceptable. The GM at Belairs VA has a blatant attitude towards this matter,