Jesus I wonder if you would have all fallen over yourselves so much to help a male?
Ignorance is never an excuse, google is there for everybody to use so is the telephone. We live in a world of con artists, why take anyone at their word? Five minutes on line and there are various website detailing how to find reliable, qualified trades people.
Its not that I'm unsympathetic but when they're is so much info out there that is easily accessable, why take a chance? All you can do now is what should have been done first, find someone who is qualified and pay the going rate, lesson learned.