Report them to eBay stressing that you believe them to be thieves.
It is one of the times when eBay tend to act with alacrity and err on the side of safety when deciding what to do.
You usually see the Buyer NARU in quite short order (NARU - No longer A Registered User)
As a matter of interest, a friend of mine says he has really good results by -
eMailing them back seeminmg really eager to sell
BUT - he asks for the Carriage up front as he can't otherwise send it
When they don't reply he badgers them with eMail after eMail saying he has the thing packed and ready to go etc.
You get the idea.
It's NOT something I'd recommend, by the way, and certainly NOT something to be undertaken lightly (my friend has always had a bit of a Death Wish).
The more contact that you have with these people the more danger that you end up getting scammed.
Report them as you have done and leave eBay to sort it out.
You may have to claim your FVF back from eBay, but you should have no problem there.
IGNORE any messages telling you to send it.
This is a Second part to the same scan.
It consists of an eMail that purports to be from Paypal. It looks very authentic.
It will say that Paypal have :-
Received the full amount from the Buyer
Are holding this Money until you give them a TRACKING NUMBER
Urge you to do this quickly under threat of sanctions from eBasy
I'll repeat the warning (you can't listen to this enough, I think.)
The eMails LOOK very genuine.
Neither Paypal nor eBay would EVER urge you to send an item before the money shows in your PP.
Just don't allow them to Bullly you.
Under NO circumstances send the Phone, you'll lose it and won't get Paid
If you feel under Pressure, come back here for hand holding, support, Virtual Cups of calming Camomile Tea and TLC.
Hope this helps.
Merlin
They say that you achieve immortality through your Children. Personally I would like to achieve immortality by not dying.