Tournament Rules on Party Poker

[Jekyll]

Ran into a situation playing a SNG on party today. Don't have HH, but not really necessary.

Blinds at 100-200, UTG raises to 400, I call, and BB pushes, a raise of 75 more. UTG reraises over top, and I fold.

Question is this: Was that raise enough to re-open the betting? B/C my call was based on that not being the case, and I ended up having to let the hand go. What's the TDA rule? Does party follow that?