Borderline harrasment

I have been a customer of RCS for many years, who has always paid his accounts on time. Never any issues, then suddenly 28 Nov I made the mistake to pay R123 less than the original amount, and paid R685, which is more than 80% of the payment.

Suddenly I am getting sms's stating I have not paid my account at all, and I need to pay a higher amount immediately....then I get a bunch of emails stating the same, and let’s not forget the almost rude phone calls. Is this how you treat your customers?

I already checked and paid the balance of R123,46, and I do not appreciate being treated as a person with a huge outstanding debt, who has not paid in months. Your customers are who made you, let’s not forget that and treat them better. I can and will close my account asap if this is how I am treated.