RE: 4 modeltronics hobby traders
I tried to search for thier name on e-bay and couldn't find anything. What was the feedback rating? Anything less than about 97 or so, I prefer to give my money to someone else. How long has it been?
Also, did you purchase the item with a credit card? If so, call your credit card company and stop the payment or iniate a chargeback. They will send the company a request to send them [the credit card company] proof that you purchased the product. There are built in protections in credit cards. You can explore your options.
Good luck.