Don’t worry about the telephone call. The offer comes out automatically and you are free to decline it, accept it, or hold it in abeyance.
The situation with the garden wall, even if you consent, is straightforward: if it collapses, he is liable for it in negligence.
The same applies to any other damage to your property.
If you refuse consent to the works then as it says in the explanatory booklet, the dispute resolution procedure comes into play.
If you refer to sections 11-17 explain the dispute and resolution process.
All you need to do is respond in writing to the neighbour. If he doesn’t do what is required along the terms of the act (in the booklet) and you can apply to court for an injunction (and legal costs) to make him stop the work pending an agreement.
Can I clarify anything else for you?
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