This has been variously reported as Capital One and/or Aqua.
I looked at the numbers quoted (last 4 digits) and they do not match either, as far as I can see.
Aqua has recently changed its office and computer, and have become rather chaotic. They just charged me interest - even though they had collected the previous balance in full by DD. They used to be handled by HBOS in Dunfermline, but no more.
No doubt somebody will soon work out who BHAP0042 really is.
Cheers
Arthur