Unable to allocate payment

I settled my account, an amount of R4609-00 on the 21st of October and up until today, 16 days later this payment disappeared into thin air. I logged a query on their website and received a confirmation of receipt on the 29th of October. I called in three times, the first time I was informed that EFT payments only reflect after 5 day and the response after that was matter has been escalated to the finance department and that there is no turnaround time on the query. <br> <br> In the meantime my account reflects as oversold with R109-93 and instalment of R366-00 is due with a balance due R4609.93. I am certain that it has since accumulated interest too. <br> <br> Please urgently attend to this matter as this is unacceptable. <br> <br>