Can you enter more than 6 subway scrabble pieces??

Question

I have been entering unneeded letters on subway scrabble in order to try to win the instant win prizes. They do not have places on the board. Can I enter more than 6 extra letters? I'm afraid to enter them for fear of losing some letters...

Answer 1

i dont know anything 'bout that !!!

Answer 2

yeah. you can enter as many as you want. i think i haev put in almost thirty