Can they ask for rental application back?

[Account Closed]

I recently had 3 people fill out applications. I had one that I wanted but as I went into his background, I noticed a bankruptcy under his wife's name, he did not fill out his income section, and the total income written was 2200/month. Rent is 1500 and they had a car note of 500. Which means they had $200 extra a month for food and bills.

They called and we told them they did not qualify and now their pissed. They have been calling me everyday but I do not pick up. Now they are wanting their application back.

Do I have to by law give them their application back? Can I just mail it to them? I would like to avoid them if possible.