Chose RIAS through Compare the Market. Clicked the link to the RIAS website and purchasing the policy itself, was easy enough. As requested, registered with RIAS, and uploaded my Proof of no claims discount (NCD) via my RIAS account. A couple of days later I received an e-mail confirming RIAS had received my proof of NCD. Very ANNOYED to then receive a letter, a week later, threatening to cancel my policy if I did not provide the proof of NCD. This necessitated a phone call, at my expense, to RIAS to confirm their receipt of proof of NCD, which was duly confirmed.