lets say i have a willpower of 47 if i up the to 57 does that mean my WP bonus of 4 goes up to 5 or stay at 4?

it goes up from 4 to 5.

ok thanks cause im duel GMing and he said it didnt and i couldn't find it in the book i just wanted to be sure i didnt miss it. again thank you

Ask your GM to read Page 52.

Characteristic Bonuses

Each Characteristic has a corresponding bonus. A Characteristic Bonus equals the tens digit of the Characteristic score. For example, a character with 41 Strength has a Strength Bonus of four. Generally, Characteristic Bonuses are used to determine the measure of success or failure in situations or tests that have variable results.

ok thanks