We adopted our Greyhound 3 weeks ago. He came with 4 weeks free PetPlan. The kennel didn't tell us we needed to call to activate it (and we didn't read the leaflet properly, just skimmed it, so we're to blame really.)
So I called PetPlan yesterday to join the scheme properly and that's when I found out we weren't registered. Before I found out we weren't insured I had disclosed that we were going to take him to the vets for an ongoing upset tummy and general loss of energy over the last few days. It turns out that they won't insure him for any gastro-intestinal condition now.
So my next stop was Tesco. I thought, well, I won't let on about the tummy and they'll insure us. At the very last though, it became apparent that they don't cover dental work - something that, as an ex racer, he'll probably need in the future. The reasoning behind this is that poor teeth are a sign of neglect.
I do appreciate this, but surely that discriminates against owners who have adopted dogs who have suffered neglect from previous owners. I know he had a tough life before he retired. However, he's well looked after here and it seems unfair that we're left unable to insure against medical conditions he is likely to suffer as a result of previous maltreatment.
Anyhow, I hope this all makes sense. I've had a sleepless night worrying about vet's bills for this tummy thing he's got and the possibility we might not be able to insure him at all. 
Any advice or experience is most welcome. Please be gentle though. I am exhausted and soon to be alone with a poorly dog and two small DCs as DH is about to go away for work. Arrgh.