Here's what they say:
As the joyful days of Diwali have started we are happy to renew our discount scheme so you can offer our music software to your friends (or yourselves;-) at a great price.
Do hurry if you wish to receive a packaged version in time.
This offer is only for software purchased through our online shop at www.swarsystems.com (mobile apps sold on App Store and Play Store not included).
Diwali discount will end on November 17th, 2020.