Contract Rescind virs

My daughter took out a gym membership based on a written contractual offer from Virgin Active, this was in February 2021.This contractual agreement has never been effected and we have been overcharged by about R250 since March 2021, numerous emails to the sales consultant has been sent and this matter has still not been resolved, no surprises there! The consultant was able to send numerous emails on the "contract intiation" day but has not surprisingly failed to resolve this issue after nearly 2 months of us attempting to get a response in this regard!I have cancelled my contract after about 15 years and I will certainly be canceling my daughter's contract and claiming a full refund of all premiums if not resolved!