Sou then broke the exciting news that she had won.
"It was a sheer fluke - I always follow rugby games but don't go looking for competitions," Bishop said.
Bishop wanted to give the prize to her son and his wife who are keen rugby enthusiasts but, due to the terms and conditions, was unable to pass it on.
As her husband is not able to travel, she will be taking her daughter who lives in Australia to the final.
The two will enjoy four nights' accommodation from October 31 to November 5, a busy itinerary exploring Tokyo and an official Rugby World Cup jacket to wear to the game.
"It's going to be just amazing, I've already got my bag out and already started packing."
Bishop has even bought a little kiwi soft toy as a mascot, she said.
Alongside two tickets to the final, Bishop has won $3000 worth of Canon gear.