Many thanks for your prompt response.
I believe that, upon service, I need to provide an affadavit to the court by way of confirmation. Does your reference to 'dispensing with personal service' mean that a specific application would need to be made, separate to or instead of the affadavit?
The answer was sufficient and I can confirm that I have now successfully served the notice (actually without issue).
(I did already rate this service. Apparently to do so again would require a further payment)