Londonercalling

Hi Reddit, I need some help with my party wall process please:

My neighbour has completed an extension to increase the height of his property. We both instructed party wall surveyors, who completed these.

Now that the building work has finished, it is clear that there are 1) a few bits of minor damage, 2) the neighbour has placed his soil pipe on our party wall, rather than on his side per the plans, 3) added a render which overhangs the original party wall, overhanging my property (only by 5mm, but the render does not match the finish below)

My surveyor has been very uncommunicative and is telling me the party wall act does not cover points 2 or 3 above. He says I would need a solicitor