Getting Vodacom to effect a premature cancellation request and stop billing me monthly

Vodacom has the most terrible customer service I have ever experienced as I have said on the phone and to friends I HATE dealing with VODACOM,

I requested a premature cancelation quote on the 26 July 2018 paid the full quoted amount emailed ********** with the signed quotes and proof of payment all on the 26 July 2018.

a few weeks later I received a bill reflecting my settlement amount with the monthly subscription deducted, so I call the retentions dept. to find out why the cancelation has not been done only to be met with "I don't know I'll escalate the query and get back to you" as per previous encounters I was never contacted back by Vodacom.

so I follow up a week or two later once again "I don't know I'll escalate the query and get back to you" never to be called back? the best part is none of the call center agents would give me a reference of my calls!!!!!

This month once again I receive a bill with the cancelations only allocated on the 31/08/2018 reflecting my account is outstanding with R1 654.13 ????

how am I responsible for two bills the one deducted and now the balance remaining was less than the settlement amount after the account was originally supposed to have been cancelled in JULY so I call Vodacom again same answer "I don't know I will escalate the query and will get back to you"

how is it so difficult to cancel a contract and now I'm being held liable for a bill that was paid up in July

this is ridiculous, ********** service but claims to be the best!!!

I will never use Vodacom ever again!!!