Harvey Copping and Harrison in Wickford

Shockingly bad, I do not know how they are still in business. I have seen children with better maths skills than these people. They make many mistakes and when you question them on their mistakes, they refuse to believe or accept that anything is wrong (apparently 76 - 4 = 74, nothing wrong with this equation according to them). They then charge much more than the original quote, without warning, for the privilege of all their screw ups.