Jet Airways — have not received my refund since 1 month

Address:

Chennai, Tamil Nadu

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[protected]

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These are my ticket numbers. Cancelled them on april 22. It's already may 25 and i haven't received the refund yet.
Every day and every time i call the customer care, by some reason or the other they say to wait. It will take time.
They asked me to mail them, but i get no response. They say me that mam you can only wait. Very poor customer service. Disappointed.