Best way to fix this mess

[Alwayslearning22]

 Hey guys I need some help if you can

What’s the best way to repair this hole around the cable in meter box? I think they used a hammer to make there hole. 
 

thanks 

[JohnMo]

Trim the white plastic to be tidy. Mix some self levelling compound and pour on. Have a cup of tea/coffe

[Alwayslearning22]

12 minutes ago, JohnMo said:

Trim the white plastic to be tidy. Mix some self levelling compound and pour on. Have a cup of tea/

self leveling will work on a plastic meter box? 

[Mr Punter]

A sparky might comment but I think the blue and brown wires need more protection - like trunking.

[JohnMo]

12 minutes ago, Alwayslearning22 said:

self leveling will work on a plastic meter box? 

Why would it go in a plastic box, isn't the repair to the concrete floor? If they were hitting the plastic box with hammer there wouldn't be a plastic box in the photo 

[Alwayslearning22]

[JohnMo]

A bit of silicone and a wet finger?