Vodafone India — over billed and extracted

Address:

18/1B Hindustan Road, 700029

My Vodafone no is [protected]
This is with respect to my bill dated 06/06/19.
I was billed and have already paid a whopping amount of Rs 46, 143.61.
I feel cheated, betrayed and very dissatisfied.
I was going to travel to Europe for which I had taken a [protected]@28 days pack for Rs 5999.
My credit limit is Rs 12800.
1) Now I went for a 5 hour trip to Montenegro from Croatia. In these 5 hours I have just transferred 5-6 pictures on wassap which were just a few hundred kb’s
2) I was shocked to see that in the bill you have charges for 51568+3995 =55563 kb @ 5.5 per 10 kb = 30535.5 in the smart bill. Whereas my usage wan not this much.
3) My credit limit is 12800 but my bill was allowed to come to Rs 46143 without any intimation or warning
4) I was travelling with my friend Tarun Khandelwal who had a airtel no. [protected] and he received a warning message but I did not from Vodafone. This is where I feel that my bill was allowed to go out of proportion without even informing me.
If Airtel can why is it That Vodafone would not???
Additionally I am sure this was not my usage in Montenegro.
I have already paid my bill but I am one of the oldest customers of Hutch and then Vodafone in Kolkata and this is making me fell absolutely cheated.
I would be porting my no. to Airtel if no action is taken on this. Atleast they don’t keep their customers in dark and let their bills reach astronomical levels and then extract that amount from customers.
I hope you understand that after a relationship of over 2 decades this was not what I expected.!!!
thanks
Pramod Bihani