You can remove that old splitter if you have the newer Quickstart kit. You will need an adapter on the end of the cable, https://www.diy.com/departments/slx-f-type-satellite-cable-coupler/5028422001905_BQ.prd
This will allow you to push fit the new quickstart cable on.
If you only have a Hub and no other VM kit, you can screw that cable directly onto the Hub as a temporary measure until VM install a proper wall socket and isolator.
You may also need to get the kit authorised. Call the equipment activation number they may be able to help. It's 0800 953 9500 and you will need the Hub serial number/MAC address from the barcode sticker, and your account number.
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Welcome to the Community Forums! Thanks for your post.
I'm sorry to hear you don't seem to have the right parts for your installation. I can see that you have been able to speak with our team since your post, were you able to get this sorted?
If not, just let us know and we'll be more than happy to help you out further.