R.b.m. Financial Services, Inc. sent a check for $4.500 dollars for us to deposit for taxes and then they send us check for $250,000 St. John Nf New Foundland

What don't you understand? It could be a real check on a real bank with a real account number, but there may not be any money in the account! Which in this case, there isn't! Anybody can open an account and get real checks then send the checks to greedy people all over the world telling them to deposit the real check but send them the money via Western Union! Then the real check is returned by the real bank and your bank wants their real money back real fast! And guess what? The scammers are real gone and you are in real trouble.