RCS

Made a payment on the 19FEB 26 of R800 in to Edgars FNB account since then I've been called by Edgars and RCS daily asking for outstanding money , how difficult is it to find a payment. RCS every day calls then I explain the everything over and over and all I get is someone will contact. I have sent them proof of payment to their WhatsApp Group no response. All I want to do is close the account