At Santander it's all in an account name

I have my main bank account and mortgage with Santander. The bank is offering an upgrade to its Zero current account, paying 6% interest, to customers with both products. However, I have been refused the upgrade as I use my married name for my joint mortgage and maiden name for the current account. Given that I have provided my national insurance number, marriage certificate, photo ID (driving licence), salary slip and my Santander bank account and mortgage details, I find it ridiculous an international bank can't give me the same rights as my husband in accessing this offer. RB, London This one really confused Santander as it has never come across this situation. Its initial reaction was that it still could not offer you the upgrade and that it was not being discriminatory, which you had suggested in your letter to it. Having thought about it a bit longer, it now agrees with you and has upgraded your current account. Because of the delay in opening the account, it has included a goodwill payment of £75. Can we help? If you've got a problem you would like us to investigate you can contact us by emailing [email protected] or writing to Bachelor & Brignall, Money, The Guardian, 90 York Way, London N1 9GU. Please include a daytime phone number.