Oh thanks HPAVC - I'll try calling (though with patch and all I hope I won't stay on hold for hours)

Ps: I didn't merge or transfer on the new accounts ; they were freshly created on a fresh battle.net - yet they got that 30 days restriction (and yes my booster is one of my original accounts - I managed to get the 5th to 60 by getting a small group to level 4 and then
E -> 30 + 4 -> D 34/2=17+ 4 + 30 = 51 -> C 51/2 + 4 + 30 = 59 -> B 60 -> A = > 60 giftable levels
)