Just had a call. Recorded message, obviously...
'attention all visa and mastercard holders....
... you have been specially selected ...
... interest rates are rising ...
... special rate of just 6.9% ...
... PRESS 6 NOW PRESS 6 NOW PRESS 6 NOW PRESS 6 NOW ...
The really annoying bit is somehow it managed to coincide with my broadband connection dropping for the first time in months.