Thank you for your reply, I used Resolver to register my complaint with Tesco, they have never asked for me to complete a questionnaire, also they have informed me that they have all the information they need to complete their investigation.

I am currently in the process of a claim with Tesco Bank with regard to a single premium PPI policy added to a loan and interest charged on top of the total. I rang them today for an update (this is the seventh week of the claim) and I was informed that the final response letter is with their quality control team before sending it out to me, I was just wondering if this is a normal part of the process and if anyone has experience of how long the quality control team takes to release the letter. Also does anyone know what is the success rate for single premium claims?