Tanishq — Regarding my diamond rings

Address:

Shipra mall indrapuram Ghaziabad

I have bought two rings from different stores if tanishq one at noida gip mall and another from jhansi store which I wished to exchange yesterday for buying a gold chain of higher amount from Shipra mall indrapuram store. I was told that both my rings will only be exchanged for 50% of total value. They told us this is company policy regarding certain ucp products but we have never been told regarding the ucp products while buying those rings at either of the stores.