Cellc contract

I'm a loyal Cellc contract customer for years. I'm so disappointed and disgusted with their service my account every month shows I haven't made payment everytime I have to go into the store and email my proof of payment. I have never skipped a month this all started when cellc double debited my account since last year July.I have numerous references from agents of cellc I have contacted.My account is still not sorted out nobody can assist me by correcting this cellc customer services is pathetic I am so done with them will definitely end my contract with them. I advise to everyone not to start a contract with cellc.I am not the only one having problems with their contracts at Cellc. Whenever I go into their retail stores I hear customers having the same problems with their contract.Cellc then penalize me every month with R79 because I reverse the incorrect amount that they are debited.So what they doing actually is taking money from me calculate its been a year already 😡