I'm not sure if the Mixit bundle will show as M2 in your account. On the website it's called the Big Bundle and has 108 channels.
Virgin Media are currently giving customers on the lower bundles some extra channels for free during the current crisis, so these will have been temporarily added to your package. A further 17 channels were added today.
You can find details of the added channels by looking through their recent press releases press releases
The Service you do for others is the rent you pay for your room here on Earth - Muhammad Ali