You say you can not change your ball during play I agree! Why did you change my ball during play...is this proper? or something you can do !! and only you!
Local rules. It's a courtesy that WGT gives you a ball to play so that you can finish your round.
Next time remember to stock up on your favorite ball and keep a large inventory in your bag (i.e. equipment list).
upcenter:You say you can not change your ball during play I agree! Why did you change my ball during play...is this proper?