Just an update on this. Spoke to nordeus support whol followed up with offending token companies. Also completed a few quick easy challenges for small tokens knowing they wouldnt get paid. Then raised a case using a diff email address. Mysteriously tapjoy and ironsource then replied to this new email and when i asked them to review previous cases they did and apart from one challenge ive been paid all the tokens i was owed. Its almost as if the email address was blacklisted and using a new email address kicked them into gear. 1000 token balance certainly has made the team more competitive again!!