Don't worry, you will definitely get to enjoy your discount. If you renewed your contract on or after your “Date of Bill”, the discount will only be shown in your next bill.
For example, your “Date of Bill” is 11/06/14 and you renewed your contract on 11/06/14. This means the discount will be shown on your next bill dated 11/07/14.
To check your "Date of Bill" and more, please click here.