Bad Service and charging for services which I didn't use

Dear sir

I have used the taxify a few times and have never had any problems. In mid August 2018, Taxify has made several attempts to debit my account for a service, which I didn't request. I ank ahad an email from Ego from Estonia requesting me to add a new payment. I asked him to please investigate and he found that there was an error on their for which he compensated me with R150 on my further trips. I appreciate that, but this has lead to me cancelling my bank card as they have contined to debit my acount and this lead to declined bank charges, which all togther costed me in th region of R330. On saturday I requested a ride using the promotional code, but I account was blocked, I have sent a request via the application and email, but still haven't heard from them