Hi @nixorbe, thanks for your post although I'm sorry to hear of your concerns.
As @jbrennand has mentioned, the fact that the cover is loose doesn't necessarily mean that your services won't be working if you choose a Quickstart install, but yes that could also be the opposite and you obviously wouldn't want to get your self-install kit, and things to not work on the day!
We of course would be able to send somebody out to the property later on (if you choose the self-install) and get things fixed, but obviously you would have to prepare yourself for a few more days without the services.
On the opposite side of things, if you choose the engineer install then of course we'd get the cover fixed for you on the day too, and ensure everything's working for you.
I do hope this helps make your mind up, and thanks for taking your time to post here in the community - let me know if you've got any further questions!