Poor customer service

I opened an account at home choice towards the end of April 2022, I received the goods in May so my first installment was at the end of May. I have paid the installment each and every month but Homechoice keep sending me messages, sometimes phoning that my account is in arrears, I have explained everything to each and every consultant that phones but it seems like they don't understand what I'm saying or they aren't interested and they expect me to listen to them and pay.