You can contact VM to report the problem using ...
Pre-installation & Delivery team on 08000 521 734
Hub Activation number on 0800 953 9500
Text service on 07533051809
150 from Virgin landline.
0345 454 1111 from any other UK phone.
The best time to call is weekdays 08:00 to get a UK agent, anything after 10:00 you must realise that you are quite likely to get through to an offshore agent that doesn't speak English as a first language.
Or you can wait on here for one of the VM Staff to pick up the thread but this may take a few days.