Sounds pretty good really!! Usually they'll state a mileage lower than they know the tyres will achieve, and in your case, if you're were able to prove the mileage of previous sets (invoices with mileage at the time of change is always worth keeping!!), but some manufacturers will have you jumping through all sorts of hoops to get out of paying out on low mileage claims, and still say no. The last manufacturer I worked for were like that. Always used to annoy the hell out of me when I inspected the tyres and wanted to pay out but was over ruled by my manager!! lol.
Well one things for sure, the Coopers are now in the mix too!!! lol. You're supposed to be helping me choose, not making it harder!!