You ignore your customers why? - Consumer Complaint for Topics Stores

I owed topics some monies which were paid in full by my former employer. In july2018 is sent an email to topics wanting to know if my account was settled from their end and they did not respond. Come august 2019 i ask them again and they were quick to telm meni owed $144. Upon requesting the oring of the money they started ignoring me. I have been sending them emails almost daily requesting a statement which showed how the $144 came to be and there is no response.its a month now and no reaponse but they were so quick to tell me the "balance" they say i have. Topics tell me where the money is coming from.