Vodacom service pathetic

Vodacom! The worst service I have ever received... Even after canceling my contract!

My contact expired years ago and Vodacom kept on deducting the monthly fee until I phoned them last year April. Then only to receive a phone call to inform me that my account is in arrears. After I have explained to them that my contract had expired the deductions stopped but to my surprise it has effected my credit score! Now I can not move forward with my financial planning because of this company!

According to the bank I only need a letter from Vodacom to resolve this but the service from Vodacom is pathetic! I have been trying to get hold of them only being cut of multiple times!

If someone can assist please phone me.