Bad service

Have been trying to cancel our vodacom contract. The Contract expired January 2020, but the continued month to month, the account was in arrears that was paid up last week and we have requested that the contact be cancelled which was not done because the status on the account was not updated to show that it is no longer in arrears. We have been contacting vodacom numerous times to such extent that they have blocked my husband cell number. We will no longer pay this account.