"To dispute the charge" means questioning or disagreeing with a specific payment on your bill or credit card statement. It involves expressing doubt or wishing to challenge the validity or accuracy of the charge. Full definition
Consumers who dispute charges with their creditors are often uncertain about whether or not they are supposed to pay the bill that is in question. (creditdonkey.com)
You can often dispute the charges if something goes wrong. (fbi.gov)
They asked me to prove to them that I didn't stay there in order to successfully dispute the charge. (consumeraffairs.com)