Pathetic service

15/06/2020 I requested a relocation to a new place for my fiber the fiber was finally installed and running 18 July 2020 I have a contract with vodacom even though the provider is metrofiber , I receive my July invoice which I was charged full amount for the previous address and prorata for the new place , August 2020 I received an invoice again the same service was charged full for the previous address and full for the current address I have called vodacom since then they don’t want to pass a credit on my account they keep on closing the case without resolution the first SR number was SR*** the current one that I’m still waiting for an update on SR*** they always promise to call me back and never did each and every month I must reverse their debit order and pay cash which is an expense for me with the bank charges and inconvenience