Not a hard copy but you can get it from their website - I have a copy saved to my favourites, and this is the bit I can find
If Your Pet is under 9 years of age at the time of Treatment, You must pay the
following per Condition:
The first £50 of Treatment costs if the value of the claim is under £1,000, or the first
£75 of Treatment costs if the value of the claim is over £1,000.
If Your Pet is aged over 9 years of age at the time of Treatment, You must pay the
first £50 or 15% of the Treatment costs, whichever is the greater, per Condition.
This Excess does not apply to the pet cremation benefit.
I know when I claimed for Pebbles, I got told it changes from £50 to 15% when you have claimed £350.