Numerous unnecessary calls

I like the homechoice products but they numerous calls can be annoying. I recently bought some items from them like I have always over the years. They call you every month at the beginning of the month to ask you when you are you going to pay you say month end. The 25th of Feb I couldn't make the payment as I was busy and knew I had 3 to 4 days before the last day of the month. From the 25th I was already receiving numerous calls and sms's this morning the 28th of Feb I made paid but still received four calls from a *** number. I answered and told them I paid they asked how much it's really embarrassing and irritating to keep answering these questions every month. Why can't they call they clients once they see that they haven't received a payment. And a sms as a reminder at the beginning of the month is enough. I will pay my account off and never order from them again this puts me off.