I have received numerous calls from this "blocked" number for the past week. I finally spoke with them today and He advised I had received a grant from the US Federal Government. He wanted my name, address, date of birth and bank account. I hung up on him and he had the audacity to call back and give me this call back number for his senior manager (which sounded nothing like that when he said it). I googled the number and thankfully saw this and told him he was busted that I knew it was a scam. I too am on a Do Not Call List.
Called me today and said I had been selected for a 7,000$ government grant but I had to western union like 250$ and then the money would be released in my account. I asked my best friend for advice and she said I shouldn't do it ,she also looked online for me and found this site!! I'm so glad I didn't fall this because its a straight up scam!!