Old BT Junction Box - What do I do?

We move into a new flat and the main telephone socket comes from a really old little oval junction box. The junction box is loose on the windowsill with bear wires coming out of it and is easily reachable by our children. It'll last days if that in its current position/state.

I have our provider says theres nothing wrong with the line so they won't get an engineer to replace/move it and OR won't do anything without the provider booking it.

Heres the box: https://photos.app.goo.gl/xKXfLIBgzT1uM1g42

I seem to have no options but to move it myself or get someone to do it as they've left me no choice.

Anyone?

Should be just screw terminal inside. Easy enough to DIY

With what though? What do I replace it with?

Cross posting is frowned upon - direct everything to the thread at http://forums.thinkbroadband.com/fibre/t/4586634-old...