Thank you very much Char.
From what you have seen, would I be able to change all of my other UK details aside from the BRP in the meantime before my application OR wait until after the ILR application before making changes or mention of a name change & marriage?

Hi forum, Currently in UK on an ancestry visa, which expires end of March, before which I intend on applying for ILR. In October I got married in South Africa and double-barrelled my surname but all of my documentation is still in my maiden name (passport, ielts, life in the UK test, BRP, drivers ...