BB&T B$

This past weekend I went on a road trip to NC Foreign Cars International. To check out some cars. Tried my BB&T Visa at the Sonic in Greensboro and my card was denied. Didn't think anything of it and paid with cash and went on to Asheville. The next day got gas again tried my BB&T Visa and was once again denied. Did the 800 number routine and was told I had a balance of $1800 and had $0 available credit. Tried to talk to a human being to find out what was going on and was told they could release the information and I would have to talk to someone during normal working hours.
I use my card for convenience and charge almost everything. I pay the entire balance off each month. I have a limit of over $18000 on the card. I do all my business with this bank usually have a balance of over $60000 in my business account. I had my mortgage with them which was paid on time and in full. I also take out a line of credit with them every year to pay my Med Mal insurance since I get a better rate with the bank than with the insurance co. This get paid off on time every year. Over the last 20 yrs. I most have had close to $8,000,000 go through that bank.
When I called Monday they told me that I had missed one payment and I was $15.00 behind in minimum payments. They had put a block on the account until I paid the $15.00! Mind you I have never been late with a payment before. I was able to give them the check number on a BB&T account for the missing payment but they insisted that it was my fault I was late. I guess somewhere along the line the post office or the bank lost the payment.
This is the second time this kind of B$ has happpened. About a year ago I got a phone call at 7 am on a Sat telling me that my last payment on a $50000 line of credit was $5 short, and that I had to get to the local branch that day to make the payment or I would be in default. The reason the amount was short because they credited the payment a day late and there was one more day of interest due. The branch manger took care of that one for me.
I can see putting the block on someone that is always late and has bad credit etc. I don't expect the bank to kiss my a$$ either but I do expect professional service from a bank I do so much business with. A simple phone call inquiring about the late payment before the block from the local branch manger would have been more professional. When I called the branch manager I was told that that they hadn't gotten notification of the block either and agreed it was a bad way to do business. If I knew I would get better service from another bank I would certainly change.