BAD SERVICE/INCOMPITENT

My wife have a cellphone contract with Mtn and i'm doing the payments via EFT ( telephone banking/internet ) . they sending Sm's to my line ( not main number on contract after i repeatedly call and tell them to change it) saying that we in arrears with R1436.00 ( 2 months payments). i called them , send them the proof of payments and still we are getting Sm's, now they saying if we don't pay it will have a bad reflect on our names. the lady at collections ( credit management) send me a email saying that ' screenshots' is not allowed. who send them screenshots of the payments ( *********** staff). tell the world about the bad, *********** staff of Mtn. They cant even change a cellphone number on the system.