Can anyone who understands these things please explain this to me?
DH and I both recently applied for individual credit cards with the same credit card firm. We both have the same job title, address, are the same age, and have had all our finances jointly for the last 20 years. Yet he was offered almost double the amount of credit I was! He does earn slightly more than I do - but it seems odd that this small gap in income should make such a huge difference to the amounts.