Some parts simply were not compatible with each other or not as described on the website. This has caused a huge delay and additional cost in fitting. Wish I'd paid more and shopped locally, at least I'd get a decent response. Victorian plumbing don't have a phone number and don't call you back when they say they will. After much effort trying to get a response from them I was finally contacted by Victorian plumbing. They insisted that I force the parts to fit together and this initially worked. However they fall apart every few flushes. Their solution is that I shouldn't push too hard! Disgusting service, they are selling parts that don't fit together, they know it and are just in a state of denial.