Bro,

I had a similar problem. Some thing was wrong on my I-94, so I just went to the INS office (it was INS back then) and explained them the situation. They corrected it and stampped it indicating that the correction was geniune. The whole process took about 15 minutes and did not have to spend any money. But, of course it was some years back, however, the process should still be the same. Try it out at a USCIS office or at USCIS office at airports.

Good Luck to you!