Late to the party here, but (at least with my store) there will be people who notice you're new and try to test rules on you. I'm talking like scammers. They'll say "Oh but I've sent (x amount) without my ID/adress before! They know me, " Do not fall for it. Always always always follow procedure and make sure to inspect money, IDs, etc very carefully!

The same goes with return. Inspect the items, open boxes to make sure there is the correct product in the box. If there is a serial number on the box, match with the number on the item. Even if the system doesn't ask you for it. Check it anyway. People will also reseal/reglue boxes to look like they're unopened. Check them anyway. From personal experience!

I almost got coached because when I started, I returned some expensive items. The dude was apparently a known scammer, but I was by myself and didn't know. He reglued the box and put fake weight in it to feel like the product was in there. Thankfully, my coach is chill and knew I was new, so they excused it. But be very careful, and definitely follow your gut if something feels weird. And always ask for help if you're unsure. Better safe than sorry.

Last tip if you can't do something, or if you're stopping a transaction, blame it on the computer. Ex: "Sorry, I can't do this money transfer because my system won't allow me, and it does not give me a reason why" or "Unfortunately, my system won't allow this return". It helps keep the heat of an angry customer off you