Disabled people dont matter

I wholeheartedly wanted to go see Sam Smith perform at tickpro dome. We are 3 girls but I however require a wheelchair seat which they have available but I can only take one "assistant" so if I take one friend to sit with me the other one has to be all on her own elsewhere. I mean who goes to a music concert to sit alone? She was even willing to pay full price and just have her stand by the wheelchair section but that is also not allowed. Well I guess disabled people dont have friends just an assistant according to computicket.