Ting, chill out until you know the truth, if you have been blacklisted, it will be stamped on your passport ''Persona Non Grata'' only when you know if this is true, can you then attempt to resolve the problem!
Oh really Todd, i guess my 32 years in Thailand, the knowledge I have gained and the contacts i've made are all for nothing! thanks for letting me know :) Things I have seen, experienced must have been pure imagination!
i would guess that your last employer made a complaint to immigration, that would get you on the blacklist Ting! You can get off the blacklist Ting but it takes money to the right person! Otherwise you can stay on the blacklist anything for 2 years (usual) up to 10 years.