Hi all, is there any difference in the companies here you register with? We used Home Again, 24 Hour PetWatch and Petlink in the US. I contacted one company here and it was just one cheap flat rate for registering. I just want to make sure I am picking the right company if it matters. I know they can link to other databases but as both my dogs are runners if they get a chance. I want to make sure they are as protected as possible!