Losing warranty and service plan due to PMD

I purchased a brand new vehicle.

I insured the vehicle with PMD from day one, fully comprehensive.

The vehicle has only had its first service, I reiterate a brand new vehicle.

I processed a claim for a windscreen replacement, PMD refuses to pay for the original glass.

Now my service plan and warranty will lapse, due to them trying to install a cheap windscreen which is not the original.

Please explain how this is fair to me or my car, a brand new vehicle.

I will not accept anything less than the original windscreen replacement as stated in your policy wording below.

Original factory supp**** components must be fitted whenever a critical component of the motor vehicle may be damaged or where the warranty or maintenance plan of a vehicle may be adversely affected

I will not pay a cent more than the excess required, if this is not resolved the Ombudsman will handle it, I am not being unreasonable, I pay you your money, and you need to replace my windscreen with the original.

Get it done!