Swiggy instamart doing some shady stuff with pricing

I added some items today to my cart and accidentally noticed there was a price change in items. I thought it might be because of different item variant being added but no that wasn't the case. Tried adding some items and guess what? The price(before adding any other charges) being jacked is the same amount I am getting as cashback using swiggy cashback card on the order! Be careful and make sure this isn't happening with you!