Good scuba instructor or packages at Phuket

Hi people,
I have trip planned for phuket from 25th Nov to 2nd Dec. We are a group of 6 guys. I wanted to do scuba diving in Phuket , can you guys please recommend a service provider which is affordable and good. I don't know how to swim properly and last time in Goa my Scuba provider was pretty bad. He took us directly to ocean and I panicked and wasn't even able to break the surface.
So looking for a beginner friendly scuba instructor or package provider.
Any leads will be highly appreciated.