A2B access to birmingham experience

i got a conditional offer to uob aswell onto the a2b scheme, there is a launch event aswell as the main activity saying it takes place in july. i’ve already booked plans in july and im wondering if anyone who experienced the a2b scheme knows if there are multiple slots in july or what the event in july consists of as i do not want to miss the a2b opportunity but i can’t cancel the plans that i already planned before