overcharge
verb [ I or T ] uk/ˌəʊ.vəˈtʃɑːdʒ/ us/ˌoʊ.vɚˈtʃɑːrdʒ/
（向某人）索价过高;多收（某人）钱
to charge someone either more than the real price or more than the value of the product or service
The gift shop in Paris overcharged me (by €10). 这家巴黎的礼品店向我多收了（10欧元）费用。
[ + two objects ] They overcharged her $45. 他们多收了她45美元。
Opposite: undercharge