Pathetic service

Very disappointed with Vodacom, I canceled my debit order, since January, suddenly last month Vodacom starts again deducted again, after I did not authorize this, and then add charges of R190 to my account a d today they blocked my outgoing calls, they are the worst, I did lay complaint last month, as I did payd my phone installment every month. Who gave them the right to deduct and stil charge me for this Pathetic