Air India — Refund for ticket

I had booked a ticket for Canada from Mumbai on 5th February in air India . e-ticket number is[protected] and it was cancelled well within the refund period and i also got a confirmation email from air india . when asked to their call center it was said that they will refund and i was asked to ask the ecommerce department . The refund is yet to credit to my credit card and its been 3 billing cycles. Its very unfortunate that air india is doing such things to their consumers in times of these . I request the authorities to provide the refund at the earliest .