Thanks for replying. But I am still unclear.
I have an iPhone on a postpaid plan. After that plan was activated I purchased an Apple watch. I have activated Number Sharing with the watch and the iPhone and that works OK. I accept that the Number Sharing service is an additional $5 per month.
I do not know if the Number Sharing process includes Mobile Data access. Or are those two processes completely separate.
When I open the Watch app on the iPhone then click on 'Mobile' a window opens, initially connecting to Optus and saying 'Loading Plan'. Then the window changes to:
'Set Up Mobile
When your Apple Watch is not connected to your iPhone, you can continue to make and receive calls and access apps using mobile data. To enable mobile data, add your Apple Watch to your existing iPhone mobile plan.' [Emphasis mine]
It is this last sentence which has me confused. I do not know how to do this. Or is such advice superfluous as I already have my 'Number Sharing' activated.
If the latter statement is correct then why do I receive regular messages from Optus to my phone telling me I could not set up mobile data.
Sorry to be long winded but I am very new to this watch thing and am just in the process of setting it up. The local Optus shop has not been very helpful and in any case is now closed.
Thanks for any advice.