Application Declined

I am a customer of Teljoy for more than 10 years and was shocked the other day when my application for a surround sound system was declined due to an amount of R220 that's in arrears. I am not aware of any returned debit orders which would have caused my account to be in arrears. I have however advised the lady whom I spoke to that I will deposit the R220 directly into their account number on the 19/06/2015. Please let me know if you are still willing to do business with me or should I do business with another company.