Hi Jimmy and Welcome to the forum, you might want to have a look at the following FAQ which explain where everything is
Welcome to Benefits and Work You would have thought that, even if no human noticed it, the computer would flag up people who are so near to State Retirement Pension!
As you say, you will be claiming SRP before the date that the form is due back so there is little point in going to the time and trouble involved in completing it. In your position, I would probably return the form, untouched, with a note to say why.