Money Debited

I am furious. I was going through my bank account yesterday and in September Vodacom Billed me R64747.85. I phoned and apparently a credit note was put on the system. I am now R62000 in credit. This is not what I signed for and someone better pay my money back in to my bank account before there is going to be problems. How can someone Debit that amount from my bank and I own only Top up accounts and now I have to be happy with having my account in Credit. I want my money back into my bank account by the end of Today. This is ******* and I will cancel my lines. I have been a Vodacom Customer for 20 years.