You’ll need to choose one current account to receive Paym payments
If you decide you want to change it at a later date, you can go back into the Paym section of the Internet Bank and choose one of your other current accounts. You can send money from any of your Nationwide current accounts.
You can use a joint Nationwide account
And you can both sign up with your mobile numbers. Together, you’ll be able to send up to £250 a day from this account (you won’t be able to send £250 each).