it was my 1st deal sir , can u suggest me some tip for dealing with someone and give me some legits people's name sir
1) Do a Google search for the profile you are trying to deal with. If Google search leads to nothing then try searching with the the contact info. he have mentioned in the thread.
2) Always never deal with gift cards with heavy discounts being offered on them like in this scenario he was offering 80% off which is too good to be true plus it is not like that he was selling one gift cards but more than one. Now run your brain- Why would a seller offer something that will be a loss for him by providing discount and that too 80% on every GC he sells. So the ultimate point is - he has no valid GC's and whole thing was a trap.
3) Always use escrow even if someone is providing gift cards at a suitable rate (which is not supicious) . There is still possibility that it can be a scam attempt.
Also go through this :
https://bitcointalk.org/index.php?topic=3035620.msg31226379#msg31226379