hmmm. In regards to the swaplift, have you contacted
MUA or wherever you originally made the swap?
I'm sorry this has happened to you. All I can suggest is taking your evidence of having sent your items, and whatever proof of swaplifting that you can get and contact the admin of whichever site you were swapping through.
Also, perhaps they can be added to our questionable sellers page?
All I can suggest in the way of advice is to always request proof of shipping/tracking/sign on receipt so you know your items are on their way?
It's horrible to trust someone and then be deceived