Well there's one I didn't see coming. Just checked our balance to see not only an interest charge (fair enough) but also a $10 'finance charge' which was greater than the actual interest charge. So even though we paid above and beyond the minimum monthly payment and left a small balance we got slugged with this dodgy extra charge. Seems the only way to make use of the damned thing is to pay off the TOTAL balance every month and don;t use it for cash withdrawals.
More on 'finance charges' here.
https://www.thebalance.com/how-to-avoid-credit-card-finance-…
Just a headsup in case I'm not the only one who didn't know about this.
Do you know what specifically the finance charge relates to?