I contacted my GP too and they’ve not received anything. However I actually got through to someone at the DVLA
. They said if the GP hasn’t received it on Monday to ring back ( that will be a challenge ) and that if I had the GP email address which has to be a nhs.net email , they will email info through to them . So , I know our cases are different as you’ve been waiting totally ridiculous ages, rather than just ages , if you are going to ring DVLA maybe arm yourself with your GP email address first ?