Debit order problems

My debit debit order had to go off on 18 Sept, yet it never went off and i received a sms that it had been rejected. I have phoned them 3 times since and they have admitted it was a technical fault from vodacom, yet fails to resolve the issue. They expect me to now make cash payments which does not resolve the debit order issue. <br> <br> Vodacom has now undertaken to resolve the issue by Friday but it remains to be seen.