Can I change $10's to $5's at Customer Service? Thank you.

Of course you can

I changed $5 to $10 yesterday and bought $20 worth of food

Sure

The Service Desk is able to make change.

Sure, as long as they have 5's

i wud imagine so, if they had the change...

You Certainly can change tens to fives at the Customer Service

I don't see why they wouldn't change one or two unless they think you are passing them bad money. There is a bank in that plaza as well.