*****ing from clients by debeting *******ly after canceled contract

I cannot believe vodacom *******ly debeting my account again. I let it go the first time, after which I called and emailed canceling my overdue contract that ended in September last year, but now you debited me more than double yet again. Last year you debited R 620 after I canceled my contract, ow you debited R 1400. This is nonsense. My 2 year contract expired in September 2019.in November I called to upgrade and was told I can't upgrade over the phone, even though I said I'll come to the nearest Voda shop to pick up the device once I've upgraded, but apparently couldn't so I asked to cancel. I gave all my details, then after 15 minutes the women said she'd call me back. That never happened. I then had my account debited after verifying my contract details and canceling. I then phoned and was told it will be es alated. I then had my account debited once more, so I blocked the debit from happening and sent an email to vodacom customer services and admin address, stating Contract details and stating that I had canceled my account 3 times before and I've blocked the debit and this needs to be sorted out. Of course I heard nothing. Until now when R1400 is deducted. That is my living. I want this nonsense sorted out or I will post how vodacom can't be trusted and *****s from clients on every social media network outlet under the sun, esp FB, and I will take this further because I've done my due diligence in canceling the expired contract, and I've let the debiting my account slide already, but now a more than triple value debit of R1400 for a R399 pm contract. Now I want all my money returned take off by debit order, incl the R620 something debits when I signed a R399 contract. So return the R1400 debit you took Off *******ly from my account after the contract ended Incl the R620 before that after I canceled in November the 1st time. I cannot believe how sly vodacom is. So shocked. This is unacceptable and I won't stand for it!!!