Hi paolo2,
We are sorry to hear that you decided to change your mind.
As mentioned by our VIP's, when you working your notice, the billing continues as normal. The first bill after a change is usually a little different as you pay for the month in advance plus pro rata for the time you were billed on the old package but receiving the new package.
It can be quite confusing to understand it but we're always happy to break things down. You can view the breakdown of charges through My VM too.
Once your services do disconnection, any time you've been billed for after your disconnection date will be adjusted on the account.
We wish you the best moving forward with your new provider.
Thanks,