Hey i travel alot for work so i have a dutch phone number but i made my account when i was in russia and im unable to add a dutch phone number to the account and i was wondering if you could make it possible for me to add my dutch phone number. Kind regards
When you make your account you are required to put your real life information in. There are ways to update that but it requires paperwork to be submitted.
You would need to update the Country associated with your account. You can read about that and put in a ticket via support Battle.net Account Country/Region Change - Blizzard Support
That will require some form of verification. If you don’t have SMS Protect or an Authenticator on the account. You may be required to submit Govt Issued ID. Read that carefully. As noted in the first support article, you can also sometimes submit a current utility bill to prove residency.