[When the buyer gives me any contact information. What should I do at that time]

You can say something like this "Fiverr doesn`t accept it. It violates the Fiverr policy. I do not want to violate the Fiverr policy. So, do not send me any other behalf of communication. I like Fiverr Communication. Thank you."

[Completed 1000+ Order]

Congratulations brother for your big achievement

[Hi everyone, my name is Sardor and I am a NEW seller on Fiverr]

Welcome to fiverr forum brother

[Finally hit 1600+ 5 star reviews!]

Congratulations brother

[Hi friend! I am New in Fiverr and Fiverr forum]

Welcome to fiverr community