Being harassed with "pay me money" friend requests
I recently played a game with someone that kept putting in links to a website where supposedly they "get you out of elo hell" for a certain fee. I have no interest in this so I simply ignored them, but ever since then I've been getting bombarded by friend requests from this person. Is there any way I can block the requests? As soon as I say no they send another and if I leave it alone I'm constantly getting a notification about it. Thank you