Radiator thermostat case loose, and now can't see light display.



I have recentley tried to install 6 radiator thermostats in my house. All went well apart from on 3/6 of the thermostats, the casings came loose and therefore the light up display is not longer visible as the outer casing rotates freely.

It's hard to line the outer casing up with the light inside and so the display looks pretty naff most of the time. Is there a fix for this or do I just return the set of 4 to Amazon and order a new set?

Kind regards,