Fiitjee — Samsung Tab A7

My brother wad supposed to study for JEE in fiitjee and bought the samsung tab a7. Now he is going to prepare for NEET instead because after much discussion we changed the decision and now we're stuck with this tab having the FIITJEE lock. It's been more than one month calling regularly to the fiitjee centee in my city but they haven't removed the lock and he needs to use the tab for his classes.