How To Deal With Spam Phone Calls.

I have been getting calls from (? India?) a man re: my service contract with Microsoft. I explained to him that I do not use MS and I hung up. He called back several times over the last 4 weeks. Today he called 5 times and one of those times he yelled at my husband for hanging up on him! He told me that he has all my info and proceeded to give me my email domain and name and phone number. He is threatening to automatically withdraw $1,000.00 from my account. I called the bank to have them put a flag on my account, just in case. Is there anything you can do, perhaps you know of this problem if others are going thru it also. Thank you, Donna L Quintell