Guide for wallets created on Fortmatic https://fortmatic.com/
When on Mintbase, select 'Get Started'
Confirm by pressing continue
Put in your email address you want your wallet to be registered on
Set your password
Sign in with your user name and password by clicking account
In your account, you can click the icon on the top left.
Select 'Add to Balance'
On a side note, in this menu you can also top up your ETH and buy ETH with a credit card instantly.
Select 'Fund from Wallet or Exchange'
You can now see your ETH address