I've raised £4000 to Help Cooper to fight and have a happy healthy life!

Cooper is 6 months old and is a totally gorgeous, loving, playful little puppy who is totally adored by us! He is a pain in the bum as puppies should be, he makes us laugh every single day and we couldn't be without him in our lives. He's only been with us 4 months but it feels like he has been here forever... he is one of us!
He has had ongoing issues with bleeding from his mouth since 12 weeks old but has become a much bigger issue in recent weeks. It was first thought that he was slightly deformed in the jaw area and that some teeth would need to be removed. However after recent very heavy bleeding making him severly anaemic and fighting for his life, further x-rays have shown a much bigger issue and first suspected cancer. Biopsy's have since come back suggesting it's not cancer... and there lies the problem as he has become a bit of a medical mystery!! He has now been reffered to Fitzpatrick Referrals where they have state of the art equipment and crucial expertise in dealing with strange cases, so we hope they will find a solution so that our boy can live a long, happy, healthy life with us. We want him to have every chance and have all treatment they can offer as he certainly deserves it, but the price is high! We have already claimed through our insurance for the procedures and medication he has had from the beginning plus a referral visit to a specialist with more proceedures. We are not sure whether or not they will cover another referral as our vets were dubious about this, and even if they do how much more they will pay out. The initial consultation and CT scan alone stands at £2500 and I have been told that he could need an operation costing upwards of £5000... who knew one so small and sweet could cost so much!! I hate to have to ask for help but any help would be much appreciated. If our insurance do decide to pay some out I will make sure any money is refunded, I will not be making a profit from this!
He collapsed yesterday as so weak. He has been pulled and poked and prodded for weeks. He has been in constant pain and suffering with infection. Yet through all of this he has been so happy, brave, loving and playful. He still gets excited going to the vets as he loves the attention. He deserves to be made better and have a good life!
I have today left him at Fitzpatrick Referrals and am eagerly awaiting some news. I will update as soon as we know anything at all!
Thank you!