international return rejected?

Recently, I bought a panasonic camera from a seller in Japan. However, I had a change of mind minutes after I had found a better deal (also on ebay). I requested for the seller to cancel the order but the seller never did and by the time that they would’ve had to accept my cancellation request, they had already shipped the order, even though they were aware that I made a cancellation request. Mind you, I had already messaged the seller that I did not want the order anymore but I was left with no choice but to wait for it to get here and then return it.

It just delivered today, still in its original packaging; box unopened. I tried to return it and request a shipping label through pirate ship but I was told that I couldn’t do international return labels and I went to USPS as well and I was told it would cost $92 to return (camera was originally $88 + $20 shipping). Now I feel lost. I’m not paying $92 for the camera as I have already found a better deal (that camera arrived a week ago). What is my next best option? Sell it online as the same price?