will not go away

You can argue with them, yell them to go away, be rude, but they still come back,again and again. The second week each month when we hit the afternoon I get calls from their Indian call centre. All with fictitious names, and not matter what you do they will keep calling you every 3 hours till you answer their goddamn questions. If you tell the truth you get phones from the companies, so I just now tell them a pack of lies. Just had some Indian lady. And when she asked for my date of birth I said 30 February, and she didn't even question it. But it got rid of her, so that will be it till next month.
I wish these company would disappear, and give us all a break