What should I do if I am blacklisted from Thailand after my visa application was rejected?

I applied in manila thai embassy, submitted all my working visa documents in the PH and my proof that i can work remotely. After my visa was rejected, i plan on going to TH via the visa free route but found out i was blacklisted in TH. Their reason for Blacklist is incorrect. How do i go on about this? They said my ICard should not be issued to foreigners and that they have suspicions of fake document. But only foreigners are issued icard and not local filipinos. My guess is that the consul is not familiar with Philippine documents. How can they blacklist if they are not sure. Immigration can certainly issue a CTC of the documents i submitted