Indigo Cancellation Process Sucks

I have read from multiple sources that Indigo is one of the best, if not the best, managed Airline company in India. However, it came as a shock to me when I learnt I cannot cancel a booking and get refund for the canceled journey. Instead I can only use the money from the cancelled ticket in subsequent journeys which was a procedure infamously started by Air Deccan which even they got it changed (or so I hope). If not getting my money back is one issue, the fact that Indigo has not even sent an email acknowledging the cancellation and interest-free money they have got is unprofessional and IMHO should be penalized for such a cheat-all tactic. Bottom-line, Indigo sucks, just like other Airlines in India.