Fill out forms automatically – Browser Option

Hello,
If a customer fills out the form by using the browser’s auto-fill option and specify his/her province as “ON” instead of “Ontario”, then contact7 sends the email to me as “Yukon” which is wrong.
But a customer uses “BC” for “British Columbia”, then contact7 sends the email as “British Columbia” which is correct.
But a customer uses “AB” for “Alberta”. then contact7 sends the email as “Newfoundland/Labrador” which is wrong.
All examples above happen when a customer uses the browser’s auto fill.
So I am not sure where to begin. It should be some sort of function in the background to do that, and it matchs the abbreviation of the province’s name wrongly.
How can fix this problem?
https://craft-bilt.com/contact-us/
Thanks

Here is the code:
[group canada]
[select* state-canada “Ontario” “British Columbia” “Alberta” “Saskatchewan” “Manitoba” “Newfoundland and Labrador” “New Brunswick” “Nova Scotia” “Prince Edward Island” “Quebec” “Nunavut” “Northwest Territories” “Yukon” “Other”]
[/group]

The page I need help with: [log in to see the link]