Amazing response to a complaint on Hollopeter

This is an updated review based on the builder's reaction to my first review. Builder's appear to be one of the very few service providers/retailers that monitor the reviews they receive and react. I received a call about an hour after posting my first review. After a couple of emails, a day or so later I received a call and a WhatsApp from the plumbing/tap supplier (not Builder's themselves) who dispatched their roving technician who came to my house to replace the faulty mixer tap cartridge. An amazing result. Builder's response was great after i complained but the fact that their plumbing department and salespeople seem to be poorly trained and poor communicators is a concern.