How to claim a buyer to stop blackmailing against other platform

[syedarifiqbal]

I have a buyer in other platform and he ordered me a job their. i have done the job over there and he compete the order after few days of testing.

Now he come to me there and ask the old job has been restored or so the change i did for him is reset. on that platform there is no gig like service available. and he found me here i don’t know how. bug he ordered my $5 gig of fixing bugs and claiming me to redo all the work and he do reference the platform name and how much he paid there in order page.

What should i do can anybuddy help me?

I want to block the buyer for me forever in fiverr.