Malabar Gold & Diamonds — Difference in gold rate , paid less

Place — malabar gold showroom, sampapath vinayak temple, , vizag
Date...4/09/2020 invoice number 1807

We sold 20k (35.810 grams) gold and bought 22k gold ornament.. There is difference in gold rate..
It was 4443/- in onlie chart for 20k gold but they took for
Rs.4293.52/- charged 4879 for 22k gold rate..

When we asked for explanation, , not answerd properly..
Kindly solve the issue, , , , , requesting you refund