Vodacom contract cancelation issue

Good day on the third of April at roughly 8:30 I phoned the cancellation Centre and asked that the following 2 numbers be removed olfrom contract and 1 to be placed on pay as you go and the other number was meant to be cancelled. I was informed that this has been done and tha the contracts would end on the 30th April 2020 I phoned again on the 7 the April to make sure the contracts had been cancelled and was informed that they have not been cancelled yet i was then assured that they are now cancelled and informed that the last payment on the numbers would be in May In June the statements still showed the numbers are on contract I was made about 15 calls to get this resolved and everytime the operator assures me that the complaint is logged with the supervisor and that it will be resolved and they will provide feedback within 48 hours. To date I have never received feedback and as such I am not prepared to pay for these contracts which are now in errors due to this. please can someone assist to get this resolved and contact me with regards to this query. I email has been sent as well to ***.

I have tried contacting however they say they are unable to assist as my account is in errors.