Hunting me down for a lousy R80

I have had my YDE account for over 10 years now, I have NEVER defaulted on my payment ever since I have had this account, In December for some odd reason( im pregnant) I shortpaid by a lousy R80, not R800 or R8000, R80, a lousy R80, now im bieng houded like I am a ******** for an R80 rand, people constantly calling me, letters of demand about my credit behaviour, which I take offense to, you are acting like I have defaulted on numerous occasions on this account, it it the first time I shortpaid by a lousy R80, you dont have to hunt me down for a lowsy R80 especially since you can see my credit behaviour as you refer to it for the last ten yeats, I am highly offended