I recently sold an item through ebay, and it was fine at first until I got a notice of "payment cancelled" and didnt see that until AFTER I shipped my item, what can I do about this
There's nothing you can do once you have shipped out the package. You should have checked the payment through PayPal on your Desktop computer. The transaction will usually tell you if it was pending and it will tell you not to ship it out yet until the payment has cleared.
I would honestly call PayPal for a better answer, but in my opinion, you lost your item for good.
If it's still in transit, you could possibly try and stop the package and have them return it back to you. It's a fight with time honestly and it depends on how badly you want to get it back.
