Checklist
[x] I have read intro post: About the Installation Issues category
[x] I have read the tutorials, help and searched for similar issues
[x] I provide relevant information about my server (component names and versions, etc.)
[x] I provide a copy of my logs and healthcheck
[x] I describe the steps I have taken to trouble shoot the problem
[x] I describe the steps on how to reproduce the issue
After trial, we’ve decided to purchase Passbolt for our company.
Unfortunately, there is an error in Checkout when validating the VAT number. This error terminates the payment process.
Here are two screenshots from passbolt website (https://signup.passbolt.com/checkout/subscription/XXXXXXXXXXXXX) showing the Checkout failure.
First, I fill in all the payment details, such as the credit card number. Verification of the payment using SMS and e-pin is successful.
After the successful payment verification, a message “Billing country needed to validate the VAT number.” appears.
This is unexpected, as you can see that “Czechia” is selected below the dialog, and the VAT number is valid.
I can see three “unprocessed transactions” on my bank account from my three attempts to pay for passbolt 
How can I solve the issue?