Following on from:
I purchased a Gunsan sauna single pole switch from:
https://www.ebay.co.uk/itm/Surface-mounted-Sauna-Toggle-Switch-IP54-All-in-one-Frame-Insert-Cover-/122932662577
But I can't get it apart to access the connections and screw it to the wall without what feels like I'll destroy it - making me feel pretty stupid
Any tips on how to open a Gunsan switch please?