Gumtree ad: use ebay fake account for money transfer

i saw the car on Gumtree ad last week friday. i try to contact the phone number that shown on the ad: phone is ringing but noone pickup. next day on saturday they contact me via email. they said they gonna posted on ebay within 2,3 day to get paid from as they said it's secure and have ebay protection. when i check on the link that they sent me everything look exactly the same like ebay. so i believe to them and i transfer 4800 pound through ebay financial agent by my debit card. after payment nothing respond till now. my life was destroyed and i'm so devastated. now this ad appear on gumtree again. please give me any suggestion that how to track down and take legal action on whoever behind this ad. thank you. pls give me advice that how to get money back.

Name Evelyn Hudson
Bank: Barclays
sort code : 20-98-21
account number 63182509
Reference Case ID E57812

Address: 21,Stirling Street,
Dundee, DD3 6PH
United Kingdom

Phone number 07870279529
077741235623

Bank Account Noted. (BW)

exactly the same car that show on the following link
http://www.gumtree.com/p/cars-vans-moto ... to-content

Please Helpppp!!!!!
San

Hello kyawbosan,

I am sorry you had to post under these circumstances. Please report this to your police, bank and (IC3) http://www.ic3.gov/default.aspx immediately.

The chances on recovering your money is very low.

Also post the emails the scammers sent you along with the headers. You can find information on how to post headers in my signature. Remember to remove your personal information.

Report it to Barclays and to the police.

It's a matter of concern that an account with Barclays, using the same name, has previously been alleged to have been reported as being involved in fraud. It's not possible to say whether or not this is the same account or person but, if it is, Barclays have serious questions to answer.

http://www.scamwarners.com/forum/viewtopic.php?f=26&t=72573

The general banking attitude in the UK appears to be that because this type of loss is borne by the payer they have no need to worry. With isolated instances of fraud that is sadly true, but when an account shows a pattern of fraudulent activity, and it is possible to evidence that the bank was previously made aware of this, the situation is not the same.

Money laundering legislation imposes responsibilities on banks, whether they like it or not, and any instances that might evidence that they aren't fulfilling them are serious and would have implications for them.

I'll do some Googling.