Online shopping is practical, but unfortunately it also magically attracts fraudsters. They always set new traps when buying online.
Names and prices can expose fake online shops. There is a new EU rule that is intended to better protect consumers when shopping online. Don't get involved in payments to supposed trust companies and, in principle, preferably not in transfers. Cash payment and personal delivery are to be preferred. In the case of classifieds, communication only via the platform: How to protect yourself from Internet fraudster.