I don't know if this may help but I've recently started a position working with Nationwide and I wanted to share there values on employment, they are aware of my intention to study later this year and offer employment opportunities on a non biased base, they are very flexible with part time workers, maternity workers etc, I just thought I'd share this as if you do some research into your university area and they have a nationwide branch/centre it may be worth contacting for possible employment on a flexible opportunity!
Hope this may help someone! :)