In case anyone in the future comes across this post with the same question ...
I spoke to a tutor from Enable on the phone, I initially discredited them because I couldn't find any reference to Access courses on their website. However they do offer the Access diploma, it's completely online and they accept the Advanced Learner Loan! It's also only one of two in the country where the modules solely focus on history and not humanities in general, which is great if you want to do a history related degree. The other place is Infused Learning but they don't accept the loan. Hope this helps someone!