Please update your records,I've never missed a payment!!!

Early this year I had a dispute with Transunion for not updating my OnAir account and that was corrected. Today I see I've been listed again for missing payments on my OnAir account from February to date? Why is this happening? I called OnAir and they confirmed my account is up to date and that i need to take the matter up with credit bureau ! Is it my duty to make contact each and every month? Why are my other accounts correct, WHy is it only my OnAir account that's giving me issues??