What do you mean by date of issue? The cut-off date is the date of your first claim letter plus six years (not the date you asked for your statements), otherwise they could keep procrastinating until you run out of time. Also did you know if it gets to court the court will award interest of 8%, either simple interest on the whole amount or compound interest on each individual charge if you can be bothered to work it out. There are calculators on the web. I will let you know. The fact that they have made an offer is a step in the right direction.