While you wait for answers, we may have found some information which could help you.
Click here for Cord Replace BlindHow can I fix my velux blackout blind GPL 308 with broken cord?
Finding spare mount brackets for Velux pleated blackout blinds?
how can i reglue my honeycomb shades?
How to retension a Velux blackout blind GGL4?
Refixing a velux blind?
how can i shorten the width of my levolor vertical blinds?