Terrible treatment of a loyal customer

I have been a client of Webafrica's for over 5 years already and have always paid my account for the month coming up a few days early. When I logged in on the 26th March to pay for April I noticed that my installment was double what it was meant to be.

I immediately contacted Webafrica on whatsapp, as this is the only way to contact them and was treated so rudely and badly by their staff member who basically called me a **** even though I was able to send through proof of all of my payments.

I then decided to try through their live chat system on the website and got through to the only agent they have on staff actually interested in helping a client. He escalated my query to the accounts department and I was supposed to hear back from their accounts department within 24 - 48 hours.

When I heard nothing back I messaged again on the 28th March to follow up and again was told that I owed them money even though I had not missed a payment and had the statements to prove it.

Again I received no feedback and followed up again on the 31st March to be told that its been escalated and I would hear back.

On the 01st April I messaged in again on whatsapp as the issue still had not been resolved and all they keep doing is closing the complaints I've logged because they see that I've followed up via whatsapp even though nothing has been resolved. I once again spoke to their agent that was willing to assist me and we spent the entire day on whatsapp till he finished his shift at 6pm with no resolution. The accounts department keeps insisting that I haven't paid for a month.

I was told on the 01st April, yesterday, that it was March that wasn't paid and then today, 02nd April, I was told that February wasn't paid. I have supp**** them with copies of my bank statements showing the payments going from my account as well as additional proof of payments from my account but the accounts department wouldn't accept this and kept claiming that I didn't pay.

I am honestly at my wits end as I don't know how to get this resolved and their agent has now spent a second day on whatsapp with me trying to resolve this issue.

I need someone in management at Webafrica to get in contact as this is not ok that your loyal customers get treated in this manner.