OK finally I am connected!
After
@AfriMan (thanks for your help in getting things rolling

) got back to me to confirm I was now provisioned my router then showed a 5 bar signal but status was showing as disconnected ( as others had mentioned)
Playing around with the settings ( disabling both data roaming and auto select network - which enabled works with my Rain Fixed LTE sim by the way) it then magically connected.
Impressive speeds...far,far better (x 10) than Rain ever attained in last 18 months I have been with them.
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