Nike India — nike vapor 12 club shoe tongue issue

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Hi, i had purchased nike vapor 12 club mg shoes on 14th jan from myntra.com site.
The right shoe has an issue with tongue. It's tongue is detached from throat portion with the stitches being very loose (I assume the stitches were not proper, as a result of which it's swings side ways when worn.
Kindly assist me with the warranty claim on the same.