pathetic customer service by Jet stores under RCS

Hi so i have an account with jet stores for a few years now i did not get a chance to go to the store to pay as i usually do so on the 6th of June i received an sms from them with a online direct payment link through OZOW i used it and sent the required amount that was already fixed on that link till this very day they have not allocated those funds to my account they want proof of payment for something they sent to me to use which was linked to my account i'm emotionally drained at this point because not one of the consultants have helped me ... i was told to send a bank statement which i did today i get told i need to get my bank to send the target details i mean what the hell do i not have things to do i must be digging for proof of payment for an online transaction its as good as i swiped my card. My questions to numerous consultants was why offer this form of payment if there is no way to link the payment to the customer it was sent too ? pathetic! once i'm done paying this account off i will be closing it ! no professionalism or customer support. just last week i received a link from another company to make payment and not even 10minutes later i received an email stating they have received and allocated the funds so what exactly is jets problem or did they put something in place they cant understand themselves ....pathetic