Out of interest, I went back to trustpilot.co.uk and of the six reviews that were previously there, five have been removed (pending review), after being reported by "a Trustpilot user".
Interestingly, the only one remaining is a one-star simply titled "Fraud".
That was me.. I got fed up reading the fake-positive reviews, so reported a load of them and emailed trustpilot... They said there's nothing they can do as a valid order number was given. They were all re-instated
Trustpilot also emailed back with this useless response (they didn't even bother inserting the company name "DOMAIN").
Although I am unable to comment on the specific investigation, I can assure you, that we will look into DOMAIN. If we find any reason to take action, we will do so.
There seems to be no mechanism for them to detect/police fake-positives. It seems to assume that only negatives are worthy of investigation.