********** transactions

I register my son with Shaw Academy for one year. A lady phoned me in January from England to ask if we want to renew and I specifically told her no my son did not even finish one course the previous year and it was a waste of money. In March they deducted R2220.00 from my credit card for registration of a new year, I've been trying to phone them sent them about 7 emails and nobody respond to my emails they just send me evaluation emails to rate their service but nobody contact me. This is *****. I have spoken to a few people who have also registered with them last year who had the same thing happened to them and we can do nothing my bank refuse to classify it as a ********** transaction they say I have to concel the agreement with them but I had no agreement and you can't get hold of them