Disgusting

I canceled my subscription with linkedin last month following all the required procedures however they keep trying to debit my account daily. I have gone as far as closing my profile on the there site but they still continue to try and debit my account.. in the last 2weeks my bank charges are just under R500 due to them. I've tried numerous ways of contacting them which appears to be an impossible task. I used there site to help me find employment, how I regret that decision now, instead of helping they've just made matters financially worse for me