call for account information this is big scam

Recorded message (woman's voice with British accent)with offer to lower interest rate on my credit card. I knew it was phony since I don't have any credit cards. I pushed '9' to speak to a representative who hung up on me when I told him I only wanted to be removed from their call list.

HE STATED THAT HE WAS FROM BUERAU OF CRIME INVESTIVATION AND THAT I WAS GOING TO BE LOCKED UP IF I DIDN'T PAID FOR A LOAN AT THE TIME IT CAUGHT ME OFF GUARD BECAUSE I HAD OTHER PEOPLE CALLING MY CELL NUMBER AND WORK NUMBER FROM THE SAME NUMBER AND I WAS SCAMED FOR MONEY FROM THESE PEOPLE BUT IT WANT HAPPEN AGAIN BECAUSE WHO I OWE I ALREADY HAVE ARRANGEMENT WITH THEN AND THEY DON'T OPERATE THIS WAY.

They keep calling then hang up when i answer when i call back i request to be taken off the list through their automative system but they keep calling at all hours

Called and said I have received 7000 grant money from the government, because I'm a good citizen, asked for my bank information. I asked can they send a check and of course they cant, this is a scam never would i think the govenment would send me 7000 for what??