Before you send Thredup a bag, you have to activate it on the website. That way they know who it is from. Also, to be safe you should also include your e-mail inside the bag before you close it. Once they receive your bag, they should let you know that they have received it and how long it should take them to process it. If it has been months and you have not heard anything, then either you forgot to activate your bag, and they don't know who sent it in- or it got lost or stolen in the mail. I did not activate my first bag (because the company was fairly new when I sent in my first bag) and it was not clear that you were supposed to do that. I e-mailed customer service and they claimed they never received my bag, I e-mailed them 2 pictures of dresses that were included in the bag (very very nice and in good condition special occasion toddler dresses) that I felt I could have gotten some money for- but- they claimed they could not find them. Anyway, if you did activate your bag- then I would e-mail customer service- because you should have been notified of how long it was going to take them to decide your payout amount. Once they tell you your payout amount, it can either be used as credit on their website, or you can cash it out. Using it as credit is available immediately, but if you want to cash it out it isn't available for a few weeks. If you sent in four bags, I am sure you will receive something- not much- but something. And they will let you know. If it has been months now, and you are sure they should have received your bags by now- then definitely e-mail customer service. They do respond to e-mails.