Advice on house valuation by a surveyor

[Jason11]

Hiya - I am just gathering all relevant information around a surveying report and the response to additional questions based on a valuation completed on my former matrimonial home. Going through a messy divorce and have some red flags and issues around the conduct of the surveyor. I have asked him for his complaints policy but he hasn't got back to me yet. If I went on to explain my concerns would there be anyone here online who could offer an informed opinion please so I can decide if it is worth pursuing? Cheers, Jason