Clarification question to Daniel related to his initial recent reply

Hi Daniel again

Sorry but to clarify for sure, if I went online to the jrpass.com site and
purchased / paid for the 4 21 day JR passes on the 27th September, will the pass be issued straight away so that I have :
1. Paid the current price before the price rise
2. Made the cut off date of issue before the price rise as you mentioned before the 29th September
3. Just have made the time to activate the pass on arrival at Heneda on the 27th December?
And if so should I purchase it based on my Australian date or the date from the country where the jrpass.com company is based to ensure that the date of purchase and issue is on the 27th September since I am cutting it close?

Thank you so much again!

Kind regards Gilb