That's fine. You can request, say, 1 coffee mug for 10 pens. The other side can accept, decline, or counter with different quantities and a new message.
We send a few reminders. If there's no response after 7 days, the request is automatically cancelled and you're free to start a new one.
Yes - once you've received your schwag, upload at least one photo. This completes the trade and keeps the exchange fun and verifiable.
Only the other party in an accepted trade sees your shipping address - never your email.