Hi,I'm Zoey and I'll be assisting you. I'm reviewing your question now. Please be patient while I research and compose a reply for you.
No. This is a scam.
This is simply some unscrupulous person using Bill Gates' name to try to sucker you into wiring your money away to a common thief for something you won't get because it doesn't really exist.
The tipoff is the generic email address, the fact that the money is not going to Gates but to some woman in Texas, the up front fee which is the #1 sign of fraud, and the use of Western Union, the scammer's favorite means of payment.
There are bunches of scams like this on the web which try to convince innocent victims that Bill Gates has somehow singled them out from thin air to bestow a fortune on them. You can see various scam reports and warnings here.
Don't fall for it. Cease contact with the thieves. Send them no money. Report the fraud to the FBI online at IC3.gov
Just checking in to see if you need more help or any clarification of my answer. If so, please reply here on this question thread.