The phrase "miscellaneous charges" refers to a variety of small or additional fees that are not specific or easily categorized. These charges can include various expenses or costs that do not fit into other specific categories. Full definition
Accurately and timely entered medical and miscellaneous charges for several occupational health clinics into AS400 database (jobhero.com)
Do understand that the $ 200 airline credit would normally be difficult to use since it is only for baggage fees, on board meals and certain other miscellaneous charges. (youvebeenowned.org)
Miscellaneous Charge in which Rs. 250 is levied for various alterations such as a change in the Base Sum Assured, Premium Redirection, etc.. (policybazaar.com)