Odd Vendor Bill

[Tuc at Beach House]

Hi,

     I record all bills as liabilities:A/P . I had an instance where someone
that autobills my bank account gave me a credit over what my monthly bill
was. So now in Liabilities:AP there is a -140.01 charge. But instead of
carrying over to the next month they issued me a credit. How do I tell the
bill its paid and then put that against Assets:Checking Account?

Thanks, Tuc