Hello Rebecca, welcome to the forum. I haven't heard of internet mystery shopping. I'd be very careful about that and research it thoroughly before jumping in. Reputable companies will not send you money in advance, and you don't have to pay them anything to get jobs. There is a link to a list of mystery shopping companies at the bottom of this page and you can start signing up. Keep us posted on what you're doing and share your experiences with us.
Mary Davis Nowell. Based close to Fort Worth. Shopping Interstate 20 east and west, Interstate 35 north and south.