Paid up letter request

I've been receiving numerous calls to settle a account which actually was settle in 2015 , non the less so club membership which i never really wanted had produced a unpaid balance of R5000+ , a " discount " was implemented and a payment was cleared of R1705.92 as arranged , i desperately need my paid up settlement letter to remove this from my name, Emails and calls to various Edcon call center and MBD had been done with no assistance. I dint know what to do anymore BUT i do know EDCON is pathetic and for all the harassment they put one through the least they could do is attend to my request