Often, if you see that something is off with a quest, it's best to load an older save game and try again.
Doesn't always solve things and sometimes you need a slightly different approach to not trigger the same issue (for example doing things in the right order...).
Other than that, achievement issues can be reported here:
Welcome to CD PROJEKT RED Technical Support! Here you will find help regarding our games and services, as well as answers to frequently asked questions.
support.cdprojektred.com