I went to renew our road tax and couldn't do it online as our insurance wasnt registered. Having tracked back it seems that our new car insurance company took a payment, then refunded it and havent taken one since. My DH arranged the insurance online and neither of us noticed the lack of monthly payments 
We are usually very responsible (honest) and am horrified that we've been driving uninsured. Obviously the priority is to insure ASAP (car is already off road). So can we retro insure with the original company as clearly there has been a mix up- our no claims discount will go down the toilet if we can't but I'm more worried about being "done" for driving illegally for the past 5 months.
Hope someone can help