Amazon India — Incorrect pricing, mis-representation of price to consumer,

I am amazon prime member. My name Ankit Agarwal, registered email id with amazon [protected]@gmail.com.
I have order Diapers of 28 pieces which was mention at a price of Rs. 8.72/ piece for poduct(Mee Mee Breathable Premium Baby Diaper Pants with Wetness Indicator and Leak-Proof Edges (Medium) (28 Pieces)).
Invoice number : BLR[protected]
Invoice date 24/11/2021

I was been cheated by saying per piece price stating as 8.72 but they charged me per piece 9.96429

When i given complaint on customer care to anamika... So she was very rude in start of the call. When i pointed out than she realised her mistake. I said i am not comfortable sharing my personal mobile for verification. U can ask my profile details such as email id, shipping address, Date of birth, etc but she denied.

Not sure why she only want to verify with mobile number with full 10 digit. When i am saying due to some personal reasons i am not comfortable to share whole 10 digit.

She was very annoying and very rude stating indirect words as, sir i m the only right and even my Senior will say u same hence u can escalate on email on general email id