Yep politely chase it up like everywhere in the world Administrators and workers only do what they are chased and reminded to do quite often. Knowing someone is asking them about the references and also there to answer any questions they may possibly have. I am amazed how when you chase and enquire a company goes oh we were unsure of this or could you confirm the details for us..

To put it bluntly only person who cares about your application is you, so make sure it becomes a priority for the person processing but with out making them

The wifes Citzenship, UK Visa and a recent security check she needed for her work pass all needed her to "Enquire" to speed things up as they had got "stuck in the system"

I.E she made it someones business to check the details and process it