Edgars not crediting payments on statement and charging customers twice

I have an account query that I have been trying to resolve from the 15 October 2020. I made a payment on my edgars on the 24/09/2020 - at Edgars Beauty La Lucia. Instead the reflecting they put it through as purchase. I have emailed proof of payment - my bank statement showing the payment went off and still can not get a response from them. I spoke to Zodwa on the 29/10/2020 she advise she had escalated my query to her team leader, admin manager and the store to enquire what happened,no response thereafter. On 29/10/2020 I spoke to Nolisutu who was going to speak to her team leader and Zodwa’s team leader to resolve my query, still no response. Last week (2-6 November 2020) I called in and spoke to another lady that was going to follow up with the above two people and contact me still no response. 13/11/2020 - I spoke to Nombulelo who was working from home and could not contact any other departments to assist with my query however she would get her team leader to email the previous two team leaders and CC me in on the email so that I can follow up daily as I need this resolved. I am not prepared to pay twice for something.

Can someone please try and resolve this as I will not pay for something that I have already paid.