Bigbasket.com — Wrong billing

On 25th Jan 23 I had placed an order for Birriyas tofu and brown chana. The rate mentioned on website for tofu was Rs 55 but I was charged Rs 99 plus delivery charges. Similarly for brown chana the rate mentioned is Rs185 for two kgs but I was billed Rs 140 for ONE Kg plus delivery charges.
I tried to speak to your helpline number[protected] at 9.16 pm but the person was rude and disconnected the call.
It is extremely shameful for a company which carries TATA name.
Please clarify and refund me the amount if any.
It will be most appropriate to trace out the person who attended my call and rudely disconnected and take punitive action/
Col Uniyal (M) [protected] [protected]@hotmail.com