DVLA - do you enclose licence

I know i should have sent it away but today I have filled the form in and its all correct so going to send it. Do you need to enclose your licence when you post the form away.And should i send t recorded delivery incase it goes missing.

ALso i let my insurance company know but they said they didnt need to know ive called them 3 times got different people as it seemed wrong but maybe this is right?

Thanks emma