Unauthorised electricity voucher transaction.

When I was purchasing electricity it happened that Capitec deducted the money 3 times instead of one time since I have only authorised for one purchase, but to my surprise seconds after I've purchased another deduction came in, seconds after another deduction came in again. I quickly logged a complaint on their app since I was buying electricity via app. An agent said he will investigate the matter. Some days after he called me back and said because the transaction was minutes apart they can't help me. But truth is that the transactions were not minutes apart from my side. Usually when I purchased electricity and if such incident occurs they do correct or reverse the money but on this case the money is gone. I'm very much disappointed as I wanted to use this money for transportation now I have to go and borrow yet Capitec has ****** from my account.