If you are an existing KooBits user buying 1 or 2 more subject(s), your current subject subscription will be extended and the new subject(s) will be added. The new subscription (which includes all these subjects) will end on the same date.
Sample illustration:
- When a KooBits Math user (into 3 months of annual subscription) buys the KooBits Science subject, the value of unused 9 months of Math subscription (pro-rated based on what was paid previously) will be used to offset the new subscription price. After payment, both Math and Science subscription will start and end on the same date as a 1-year subscription.
The general formula to calculate the value of the unused amount* of the subscription is:
Amount paid for annual subscription previously (excluding tax paid) / 365 days [x (number of unused days)]
*Notes:
- The value of unused amount is not a fixed amount and will vary every few hours.
- If you previously have unused amount offset in your previous purchase, the value of unused amount for your new purchase will also include this previous unused amount as well.
If you have any further questions or need assistance, feel free to reach out to us via our Contact Us page.