Replacing tinted windscreen

My rear windscreen had to be replaced due to some fool going round our district with a catapult...I wanted it replaced 'like for like'. My rear windscreen is tinted, but Saga would not pay for a tinted one as their windscreen company only put in plain ones. My campervan was purchased new from a company that is quoted in Saga's list of motorhome makes. I have never altered anything on this vehicle. So therefore I expected Saga to pay for a tinted rear windscreen. After waiting weeks for a replacement I have had to have the plain one fitted. I ask if Saga would pay the additional £80 for me to have it tinted by an independent company. They refused. Also there is no restrictions in the booklet saying they will not pay for tinted windscreens. So one would expect that they pay. I am now taking this matter to the Ombudsman. So my advice to anyone considering taking out insurance with Saga, make sure you check all that you are paying for. We insured with Saga as they are suppose to look after the 'Oldies' and we are both in our mid 70's.