I am very disappointed with my current Samsung rant, the screen is too small, the keyboard is hard to press etc. I have researched the samsung instinct and I originally wanted to get it, but for some reason I chose the rant . Should I get the instinct? Also, my mom has already sent in the rebate, could I still return it or something like that? Thank you. I only have 3 days untill my 30 deadline so please help!