Mumbai, Jan. 17 -- IndiGo has processed refunds to all passengers affected by flight cancellations between December 3 and 5, aviation safety regulator Directorate General of Civil Aviation said on Friday. "Directorate General of Civil Aviation (DGCA) is constantly engaging with domestic carrier IndiGo with respect to refunds and compensations provided to the affected passengers due to operational disruptions from December 3-5," it said. "IndiGo informed that all refunds for IndiGo flight cancellations during the period of December 3rd to December 5 have been fully processed and cleared to the original source of payment," the regulator said in a statement. Passengers are entitled to compensation as per Directorate General of Civil Aviation regulations that relate to "facilities" that are to be provided to passengers by airlines due to "denied boarding, cancellation of flights and delays in flights". Meanwhile, passengers' complaints regarding non-receipt of refunds for "the hundreds of flights cancelled abruptly between December 2-9 by the airline continue pouring in on the social media. "Hey @IndiGo6E, I received an email to submit details for a flight cancellation in Dec to get a 5K refund per flight. It's been 10+ days since I submitted everything, but still no refund. Support hasn't been helpful. Please look into this urgently," a passenger said in a post on X, with a hashtag #RefundDelay, on Friday. "Looking to connect with lawyers who have filed or are filing lawsuits against @IndiGo6E for the recent flight disruptions. Despite severe delays/ cancellations, I still have not received my refund," said another passenger in an X post on Thursday. On December 9, civil aviation minister K Rammohan Naidu had told Parliament that "IndiGo was ordered to issue refunds promptly and more than Rs.750 crore has reached passengers"....