Speaking as someone who has been to multiple worlds and multiple Kidnapping Pocket Dimensions, here known as KPDs, let me tell you that scrying likely won't work. For a number of reasons.
Scrying between regular multiple worlds is difficult enough. You typically need a traveler or some other creature that can move easily between worlds. For one, time passes differently on alternate planes so if time is at a standstill back home or vice versa, the message wouldn't get through anyway. And that's not even taking multiple circumstances into the situation. Full moon here? Who the fuck knows what moon there, or how many? Really tends to fuck magic up and makes the metamath a pain in the ass.
KPDs, on top of all the difficulties mentioned above, tend to have extra firewalls. Are you from a world with internet? They have protections to keep messages, travelling, scrying or spying from going in or out. The good news is, while not confirmed, as far as anyone can tell, time on other worlds doesn't move. If you were to go back home today they likely wouldn't realize you ever left.
My advice? If someone offers to attempt to scry, don't pay them until after they do so successfully. There's better ways to throw your money away.