What the heck ? 2 cents on my credit card ?

Yesterday I went to pay the overdue amount on my credit card which should have totalled about $270.

Cashier tells me Oh don't worry there is only 1 or 2 cents due...

Baffled but happy me. I put my hand in my jacket pocket and I find.....sweets ! I do not eat sweets, I do not even like sweets and nobody around me eat sweets nor buy sweets.

??