They call my phone twice a day and never leave a message

These people called me between 2 and 5 times a day. When i answer they hang up on me they only want to talk to my wife when they called me at 6 today my wife told them to stop calling and take us off the list and he spouts out very inappropriate things at my wife so i went off.

they called me multiple times asking questions ..when asked to talk to a supervisor I was called an illiterate....

What a scam!!! Don't pick up the phone or just hang up!! Unfortunately I didn't ....A man with a thick Indian accent starts off sounding "normal"... saying stuff about a grant, free money, you don't have to go back to school etc. I don't even know why I even stayed on the phone with him for this long. I start telling him I'm not interested and to please take me off the calling list. He tells me he can't understand what I'm saying!! What??!?! I speak good English. I'm the one who can't understand him!!! Will when I asked him not to call again he had the nerve to tell me he wanted to [***] me!!! Really!!!! I have never had this happen to me, it gave me the creeps! Don't answer the phone seriously!! What a waste of a human being!!!

Ok i dont know who they are, but they've called me 4 times a day. The past two days, they called 4 times in the span of 1 MINUTE. Can someone tell me who they are and HOW i can get them to stop?