Thank you for all your thoughts and advise .
It means allot. I know nothing can bring back our Ben, we knew the day when he will no longer be with us would come , but we never knew how bad will he be treated in the end .
I have come across yesterday on RSVC but I was not to sure and I need it more opinions. All of you confirmed me I was right.

Yes I will remove the small details I left on forum about this Vet and her practice until hopefully RCVS will do a investigation.

I just had a phone conversation with somebody from RCVS and told them in as much detail I could about Ben . This chap told me as follow :
'I think you should wright us the full story and send us any copies of medical records of your Ben, because here we are talking about couple issues and we need to take a look in depth in this sad story '
He also asked me If I had an autopsy of Ben's but you know I did not had one. How ever for future I have been told Not by RCVS , but my romanian Vet ' In future when you will have any doubt about the death of any of your animals , look around to VET colleges or universities and call them to ask if they agree to take the body of your pet for an autopsy , because some times they would take them free of charge for student practice. This particular case probably would it be accepted because it was such hard case and shows multiple organ failure because of kidney failure . But you have to be quick and keep the body in as cold conditions is possible because the intern organs are the first once to damage from bacteria '

Part of me would wanted to take him because would show I am not talking lies and I would had a very strong case and could go to cort , but part of me dose not and I think we all know the reasons.

I shall keep up to date the evolution and I will let you know how this story will finish.