Recently they held a competition on Facebook 2 weeks in a row on a Thursday

Recently they held a competition on Facebook 2 weeks in a row on a Thursday. They some rules that you have to follow n order to win. A day or 2 later they chose winners and I noticed that some of the winners did not follow the rules so I sent them a personal message with screenshots. They assured me that the next week the rules will apply...I noticed that it was the same where some winners did not follow the rules and I asked on the page how did they choose winners They have blocked me from the page This is unfair and unprofessional to know that winners were not chosen the right way and more unfair to people that did follow the rules