What should I do if my visa extension application is taking longer than expected?

Update: I called monday 5 Feb, directly I hear I have to come over to show passport because I did not show it and did not gave copies on 22 Dec. I copied all pages, including the Under Consideration Stamp signed by the same Officer, the TM 6 card, Notification of Residence and 90 day report both dated 22 Dec. I went in and it was a full house in Krabi, the Officer came to me, took the copies, looked at it, went back to his desk and copied them again to send to HQ. You can wait for answer he said, I asked it is busy, how long I wait. I have no idea, better you come back day number 7. So I went again this morning, My visa is not ready, maybe tomorrow, you can leave passport here I make all ready, you just call to pick up. I agreed with that and left the building without a Visa and passport in the hands of an Officer who just lost all my copies. Now hoping it will all work out okay, or soon I have to apply for new passport.