PLATTEVILLE, WISCONSIN -- I bought my metformin medicine at Wal mart two different times in the last 3 months both times I have been short of the amount that was put in the bottle. The first time I thought it was lost in the mail, but this time I checked the amount which was to be 270 I was short 26 pills. The first time the letters on the filling was mjl the next time it was tJK-which I don't know if they mean anything. I paid for 270 pills. I think you need to see who is shorting people on their medicine.