Blocking stalkers

I have about 5 men a week pestering me to give them work. I'm a freelancer most of the time and I have only bought once. Yesterday I had to block one of them who said he wants to work with me but hasn't given a brief after a week, from my personal Facebook page. I have a work page, which is all over the Internet, but this guy bypassed it for my personal and started trying to call me in messenger. We NEED a block button. Not having one is putting me in the line of fire for actual harassment. Last week I had a man approach, ask me for work. I told him to go away and was then subjected to three days worth of calling me pathetic, among other things, until I stopped reading his comments. I reported him 6 times. 6 times. In the end he went away on his own. I do so much work through this site and about 1 in 50 is a psycho. That's one a month. Plus 5 Eastern men a week messaging me looking for work. It's straight up harassment. So yeah. Please give us a block button. We're trying to run businesses and being put under fire on a daily basis.