Pathetic service just to make an online payment

This service provider is the worse that I have ever dealt with. I made an EFT payment via online banking on a Saturday morning after trying to login in on the pathetic website that keeps on telling you that the login details are incorrect. Reset password and the details is exactly the same as what I have been trying to login with. Checked the website via the browser to check how to make alternative payment, found the banking details which is exactly the same as what reflects on my statement. Made the payment and emailed proof of payment on the Monday morning because the accounts department only operate Mon-Frid 8-5. Then you call the customer service follow prompts that tells you that you have not selected an option. After several attempts the consultant says that the payment was made into the wrong account because that's not MWEB account details but it's the details on my statement which does not make sense. Now they are telling me to send them proof of payment, ID and confirmation of banking details for a refund which will take up to 3-5 days. MWEB please explain to me how the banking details you provide me with on my statement and your website is not your banking details and it specifically shows my account number as the reference when I make payment. I would like this to be resolved because as far as I am concerned is that I made payment to a bank account which reflects on a company registered invoice. My MWEB account number is ***1