Malabar Gold & Diamonds — Wrong product sold and poor after sales service - Diamond nose pin

Purchased a pair of diamond nose pins to be used as ear studs, from Malabar jewellery, ernakulam, Lulu Mall.

Received two different products but looking similar. Hence cannot be used as ear studs.

Tried replacing the wrong piece by visiting a near by franchise as per guidance received from the branch from where we bought the product.
However after visting the nearby branch they have denied the replacement and asked us to visit the store from where we had purchased.
I stay at a far away place and now Malabar team is asking me forcefully to visit the far away store for replacing the wrong product- which ideally was caused due to carelessness of malabar staff.

Poor after sales service and coordination between malabar teams.