Collection agents

I have accounts at FNB, and have always found their service to be excellent. However, recently, I went R361 overdrawn which is now causing me untold hassles!<br> <br> By the 25th of each month (at the latest), the account is brought into line again, yet Blake and Associates will phone me every second day to tell me that I am overdrawn! I explain to them time and again that the account has an overdraft facility, and I am using the cards as normal. Yet in two days time they will phone me again!<br> <br> I have a standing arrangement with FNB to reduce the overdraft. This arrangement has been in effect for about a year already, but when B&A phones me they quote the full overdraft amount as what I am in arrears! I have started to be sarcastic with the agents, because of the irritation, but it's not their fault.<br> <br> I have always had excellent service from FNB, but if this is trend for the future, I will have to think of closing the account.