Disgusted client

I am writing to you with a n extremely heavy heart. In August last year I took an account with inspire for bed linen. The agreement was for 6 months. My first payment went off on 25 August 2018 and my last was supposed to be on 25 January 2019 however, I missed the last payment which I was advised will be debited in March. In March the payment went off but guess what, I am still getting messages that I owe R1 981.03 which no one has been able to clarify how and why. Next thing you know my name will be listed as a bad player & I will be blacklisted. Whose fault is it that they are failing to communicate within the company as to what is going on and who is paying what? Am I supposed to pay for something that I believe i have finished paying? Am I getting punished for not going into the store and pay cash cause that is what I should have done rather than causing myself unnecessary stress with these *********** people. Yes, I said it they are *********** because certain people have called but when i asked them questions they told me "we'll get back to you" but no one has gotten back to me with concrete information. Guys, I have no issue being blacklisted for something that I know but not this nonsense! Last payment debited in March but still I am told I an owing. What for really? Am I working to pay inspire's *********** employees? I have better things to worry about not this appalling service. I am so over these people i will NEVER, quote me NEVER take anything from them ever again i will go in store and pay cash instead