Andy, I would say that the questions are basic if you know the answers to them. I'm new to be self employed and new to issuing certificates. It's not until you reach this point that you realise the things that you have never learnt during employment because you've never needed to do them. So give a man a chance... it's not that I cannot carry out high quality installation work, I just have the odd question regarding the fine details of issuing certs so that whenever I do something, I do it correctly.