' I realise this will disappoint you but I am afraid that the ASA is unable to answer the questions you have raised. This is because we do not monitor the impact of creative approaches in advertising in terms of their effect on brand performance. The ASA is responsible for ensuring that the content of advertisements adhere to the Advertising Codes and do not contain anything that is likely to be misleading, harmful or offensive."
though on the positive they had given me some advice
"In this instance I would recommend contacting an advertising agency or marketing team behind an ad campaign to ask how they measure the effectiveness of their ad campaigns."
so this morning i had phoned rather than rely on e-mail, my contacts of Pr companies and I am now waiting for them to get back to me.