Myntra.com — The prices before order was confirmed were different from when delivered

I have ordered two t-shirts from Myntra, one item costing 239 rupees and another costing 174 rupees, ~413 total order value.
This was the price when I ordered/confirmed and even after the order was placed.
The online payment methods kept timing out so I opted for POD(Pay on delivery) option.
One of the items were delivered today, only for me to realise the price for my order had changed. I had to pay 399 rupees for the item whose price was and still is 174 rupees on their website. I have attached screenshot for reference.
I have complained to their support team and they suggested Myntra is not at fault. This is clearly fraudulent and they are deceiving their customers.
I have raised return order for the item delivered and cancelled the one which is still to be delivered.