I always find the HUKD gang very knowledgeable with their advice:
My company recently got a bad online review from someone, however, the review was left for the wrong company. Unfortunately both my company and the company the feedback was left for share a similar name. The reviewer stated about a faulty mobile phone - we do not sell mobiles, so it is impossible that the item was purchased from us.
Cutting story short. I contacted twice the review company (trustpilot) explaining that the reviewer left the review to the wrong company, I have overwhelming evidence to prove this as the reviewer mentioned contact names of the other company, yet they wont even reply to my emails. What legal rights do I have as this is damaging towards my business - and we have done nothing wrong, only to share a similar name