I also don't have any control over what software version they use.
I understand that you have no control or responsibility for whatever HitBTC does or does not do, and I did not mean to imply otherwise. It's just too bad that for those who don't have the hardware to mine Aeon, HitBTC was for many months the only place where you could buy coins and transfer them to your own wallet, so many people ended up using them. Hopefully HitBTC will come through for their clients and everybody will get their coins.