AA Motorcycle mechanical warrenty is a lie

We purchased a new motorcycle and part of the deal was to take a 2 years motorcycle mechanical warranty. This is recommended and we took it. One year into owning the motorcycle a mechanical failure of the tentioner failed resulting in damage to the engine including the valves and bearings. According to the RMI approved dealership and even AAs own assessor who went to review the damage, both state it was a mechanical failure and in AA own assessors report he recommends "replacing all parts as per quote to ensure engine integrity". But to our suprise when speaking to one of their agents Alfred, AA is now stating it is "wear and Tear" and therefor non of the damage except the timing chain will be covered. The dealership nor their own assessor report concludes that it is "Wear and Tear" but rather a mechanical failure of the hy****ic tentioner. We have asked to be contacted by a senior manager at AA with no feedback thus far and if not resolved we will be taking this to the ombudsman

Would not recommend this motorcycle mechanical motor warrenty to any motorcyclists because clearly they wont cover your most important part, the motor.