Threats for a good standing account!!

After having an account for many many years with mr price and never ever defaulting or been in arrears , we suddenly get a call from mr price cause its the 2nd of the month with a threat of listing us!! How is that? They appear to now treat all clients as if they are ********* and then to immediately threaten? We normally pay and always have been 1st and 9th of the month, and that for a very long time. Time to get rid of that account and stop shopping there, be careful of them, they are not what they use to be.