Scam calls

First of all i don't even have an apple phone! I signed in here because im desperate! I constantly get these phonecalls saying there's a problem with my apple?? I've tried answering them..pressing the prompt to talk to someone.. Blocking them! When i hit the prompt it just hangs up on me.. When i block them they just call from another number! Its gotten to the point where they are calling like 20 times a day! Sometimes they call consecutively at least 5 times in a row! How do i get rid of these calls?!!