i pulled my rear seatbelt all the way out and it want retrack. any ideas to fix on 2012 Volkswagen CC

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I was cleaning it after my son vomited all over it. If you can help please let me know.
(1) Answer
(2) Comments
If that dont work out post again and we may be able to help but need to check on warranty first.