There's a site here which may help http://www.angel-divers.com/en/home

Also http://www.blackseascuba.com/

Blacksea scuba are in the north at Golden sands, Angel wanted to charge me DOUBLE the cost of diving in the UK, as i am self employed i took the desicion to not go and let someone go in my place and stay at home and earn money instead. Seems that they have a licence to print money.

But thanks all the same

Aww sorry you are going to miss this trip. Hopefully you'll find somewhere nice & not so pricey soon