Mis-sold unemployment ins via endowment policy

[ghamer]

Quick question I've recently discovered that my endowment policy from 1996 has an attached critical illness and unemployment cover that I didn't know about and didn't ask for.Cheeky bds.I recently advised them I want to claim this back for mis-selling.A few days later(funny that) I received a letter stating the payments for this aspect are too low and want to increase them,attached was a form of consent to send them.

My question is,considering I don't want/need this and intend to claim,do I not fill the form which will result in this add on being cancelled or fill in the form giving consent until my claim is processed then cancel.My worry is if I consent to the increase then this means I accept the insurance and my claim will be useless.

What should I do please.