I just spoken to guy at VM. If you already with 50Mb modem, and want to upgrade to 100Mb when it available in your area, you will have an option:
1) keep 50Mb modem but already had N wireless router and not in use and they will only charge you activation fee and no need for techicial man to come out to you.
2) keep 50Mb modem but already had N wireless router and will be in use then you will need a brand new superhub to support 100Mb wireless and will be activation fee only.
3) Want a new superhub to replaced 50Mb modem, there will be installation charge and activation fee plus a renewal of 12 months contract applied.
The 12 months contract will be applied only if you request a brand new superhub modem for all 50Mb customers who already owe a 50Mb modem. And also for customers who already on 10Mb or 20Mb will be upgrade to 100Mb as a new 12 months contract with full charge of both installation and activation fee with a new superhub for those who are on 10Mb / 20Mb customers.
So, if you are 50Mb customers who had 50Mb modem but never use N wireless router and you can upgrade to 100Mb with just a one off fee of activation fee and it all done at their end without any tech guy coming out and will not be in a renewal 12 months contract. (only for 50Mb customers)