Unauthorised debit order 6days before debit date

Unauthorised debit order 6days before debit date. I received an sms from my bank that my account was debited for my miway premium. First thing I did was called my bank to try and reverse it unfortunately they couldn’t, I then proceeded to call miway to find out why my debit order ran early. The lovely lady I spoke to explained to me that they are aware of the issue and unfortunately do not have a work around. They advised that I can only be assisted on the next business day which is Tuesday as it’s a long weekend and the reversal takes about 72 hours to reflect in my account, which is a further delay. Mind you I’m at the pharmacy trying to pay for my daughter’s meds and can’t because they took the last money I had in my account. Till this day I haven’t been assisted nor was it communicated that the debit order will run early. Miway experiencing their technical difficulties affected me big time and they had no sense of emergency or sympathy, they basically made it my problem. I spoke to the manager and he told me there’s nothing they can do because the reversal team is not in and asked that I email him my instrim statement he will see what he can do but he is not promising anything he didn’t even bother replying to my email.