On effecting the policy, Lexham required proof of NCB. I scanned to them my renewal notice which showed the bike, my name and postcode and the number of years of NCB. They then sent me a letter stating that they had not received prooof of NCB. I phoned them and told them I had sent it by email. They said they had replied saying the proof of NCB was unsatisfactory and then told me that their email had not been delivered (hence their letter). They asserted that the renewal notice was not good enough - saying that it did not give my name. It did. Or my address - it gave the postcode and also a description of the bike and its registration number. So then they said the date was wrong because the renewal notice stated a period for April 19 to April 20. I told them that is want they wanted because it showed the NCB at the time of renewal. But they would not have it and demanded that I obtain proof of NCB from my previous insurers. Lexham were inefficient and unnecessarily pedantic.