Any gained tickets you receive from making comments on offers can be removed. They are usually removed for saying something that is of no help to anyone about to do the offer. A good comment is telling people what the offer is, how long it took to approve, how long it is, and if it's worth it in the end. Spam comments that will make you lose tickets could be ones like, "pending", "stupid its been 2 weeks no approval", etc. Hope this helps you avoid losing your precious lottery tickets and remember, it only takes one good ticket to win tons of money on this site.