DMart — Refund duration

Address:

Dmart , destination mall, nanded city , oune

2 April 2023, i did shopping in dmart nanded city pune, first idid payment through goay and that time it showed processing. After waiting for 5 minutes it shows same processing then as told by dmart employees i did second payment it was successful full.
Then afterwards first payment also completed.
So paid twice
Then contact to that dmart they said it will refund in 6 to 7 days.
Is it true it will take that much longtime ?