bottomless trap hole , d prison

Good Day to all , just to be 100% sure


1)can you double bottomless trap hole a monster?

2) opponent attacks with ladd, i activate dprison (negated) , then chain again with d prison , so ladd gets rfg ?? I think ladd cant negate 2nd chain link and higher stuffs, correct me if i am wrong coz this dude tat duel me told me tat ladd is like herald of perfection (negates everything) -_-

1) yes you can if you want

2) LADD can only negate once per chain.