When you did consume all the GB of your monthly Voucher you must buy a volume of data add-on otherwise you must wait the beginning of the next month to have the new voucher coming with its new data volume for the new month.

This data add-on is 10GB, here is how this works:

1. you buy the data add-on of your choice
2. you enable the data add-on
3. from the time you enabled your data add-on after your monthly voucher was out of data volume you get the full speed of your link again
4. if you use all the data volume add-on and you are still under the period of the voucher, you must buy another data add-on to get your internet access work again
5. if you don't use all the data volume of your add-on on the month of your voucher then it will still be active during the 2 next vouchers
6. when the new voucher arrives with its own data volume, your data add-on will only start to be used if you use all the data volume of your voucher again
7. this is the case for the 2 vouchers after the voucher that was in use when you did enable the data add-on