Sudden Appearance of Backout Amount on Invoice

Since Telkom settled the consumer case NCC/03/12/SUTHERLAND/14957 in April 2013 that dragged from 2012 there was no problems until September Invoice arrived with a mysterious entry on it for \31 Jul 15 Backout R 531.32"";15/09/16 14:14;NULL;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ***;896238;690599;13;2;0;0;0;0;2;NULL;NULL;NULL;15/09/16 10:35;15/09/16 8:58;Poor Factory Quality Product;7,10E+12;Customer care;***;Dear GMSA,<br> <br> Your \GOAL\"" states the following:<br> Our Dealers take pride in their service standards and would like to be given the opportunity to resolve any problems you may experience. Should you have any queries or items of concern"