You have committed a grave error, you made your task responsibility as in Irani market, that is unprofessional first., you should have not moved unless or otherwise everything is processed in a contractual and official manner prior to take up your new challenge. Here, one should be very vigilent and cunning with the company and the people of admin sitting on the tomb that they may play with any havoc like the manner what you have been experiencing, now try to reverse yourself by negotiatioin to previous status else just kick their ass and leave the current position and look for a new job., But I think every person in the company he works has a image that he/she built infront of management that brings the result you look for depends on your skill. I cannot predict yours till I knew yur JBs/CVs etc. Good luck anyway.