Bad experience opening Edgars account

I opened an account with Edgars. I went to one of their branches and asked that it would be able to pay by EFT and not by debit order. They phoned their head office and they said no problem and provided me with their banking details. When I received my account They said R138 + 330 = R702. I pointed this out to them though their accounts seem to be lacking basic math skills. End of Month I transferred the correct amount. Next day R702 was taken from my account. Back to their branch where they confirmed that R702 was incorrect. Again phoned head office explaining that as a pensioner that extra expense was for my prescription medicine and asked that the R702 be refunded. They said I must email proof that R580 was paid to them by EFT which I did. Promised to get back within 48 hours. Nearly one week later a email thanking me for my payment of R580. Seems this month I will have to do without my blood pressure meds. Thank you Edgars