Wales duo Ben Cabango and Rabbi Matondo were racially abused on social media following Saturday's win over Mexico.
They were both sent abusive messages on Instagram, prompting Matondo to criticise the social media platform.
"And it continues... another week of Instagram doing absolutely nothing about racial abuse," Matondo wrote on Twitter.
"My Instagram will get taken down if I post any clips from my games though... priorities."
Facebook, which owns Instagram, has been asked to comment, as has the Football Association of Wales.
Former Manchester City youngster Matondo, who is on loan at Stoke from German club Schalke, made his eighth Wales appearance in the Mexico game, while Cabango won his third senior cap.