Vodacom; worse service ever

Sunday 29 July I accidentally recharged a number ending with 86 instead of mine ending with 85; I immediately called Vodacom to reverse the recharge as the number I recharged to did not exist; got REF: A2-AZ9X-U1M1RY which was closed within minutes. When I called back the following day I was advised it is because the previous agent added FAX on the call meaning I need to fax the proof for my call to be actioned. Then I got new REF A2-AZAK-6TD1PM and that too was closed; same issue. Then I called again and 3rd agent said they cannot reverse Data put in a wrong number; even if the number does not exist; and I also need to fax the proof; I advised the agent I can email now because I do not have access to a fax and he said they only accept fax. 3 calls to request a reversal and now am told I must fax but still that will not help as they do not do reversals; surely if the number does not exist then the recharge should be reversible. This is really bad customer service; the worse I have received from a provider.