I renewed last Autumn, with no problems; my passport had expired in 2014 and I was late in renewing my Licence. It shut down very abruptly and I was worried that I hadn't completed it properly so I found the number, phoned and as I was listening to all the spiel about pressing this number your call is important to us etc, I said out loud,'Oh yeah, I believe you and the rest' whereupon a very pleasant voice said, can I help you' and proceeded to do so very efficiently and speedily. I then compounded it by saying that I had forgotten to pay., (renewed twice since aged 70.
So phone them, they really are helpful and kind however stupid you may feel.