VIP only testing is NOT a feature VIPs want. They want to be able to group and enjoy the quest as intended. If theres no one to group with, which their will not be without premium players, then its no fun.
That and youll not get nearly enough feedback to properly test the quests with such limitations.
also makes no sense, U14 was actaully NOT available to VIPs to be tested for free. Premium players who pre order were far better off as they had fulll acess to all including challenges, while VIPs who took teh cheaper more ideal vip pack, lost some acess. So the whole "beta priority" for VIPs ideal died right there and then.
Please either disable the pack requirement temporarily for beta, or put the pack in the store. Currently the store is offline and thus the U15 content is inaccessible to non vips.