I once tried to cancel/reschedule a $45 flight thirty minutes after purchasing it. The Indian call center gentleman let me know there would be a $99 cancellation fee
Though I got refunded through my bank, its still that company
There are fake phone numbers available on Google that do not belong to the actual airlines. Some scammers, particularly in India, have set up websites that claim to provide airline cancellation services for a fee. When you use these websites, you may think you are contacting the airline directly, but in reality, you are dealing with a fraudulent phone rep. You were probably scammed.