Called and left no message.....????

Debt collection

Calls several times a day only to hang up. Don't they know how difficult it is due done of us to answer phone? Mean people...

Said I had to giver my zip code. Hung up

They call leave no message and I don't answer calls from unknown name or number or it says private number . If they want people to answer it should say a name a light number and name.They could leave a message.