The Frets on my Ibanez guitar have worned out . I mean the frets from 7 - 19 have actually lost the curve shape and becum flat on the first 3 strings. I guess because of lot of bending must have caused this. Now the strings hav started to buzz. What can be done????? Frets redone?? is it possible? Whats will be the approx. cost for that?