Akosha.com — random sim swap charges and tax theft

Address:

302016

This is to bring to your notice a case of mismanagement and severe tax theft of customers at airtel outlet at kk tower, jaipur.

I recently visited the store in kk tower and wanted to get a sim swapped. I was referred by another store at subhash nagar shopping center which was out of sims.

I was told to pay rs. 25 for the sim.
I told that i'd pay by airtel payment bank, they said no, and that they only wanted cash. Then i even gave options for paytm and any online mode. They rejected all.

On further discussion they told that this amount will be taken only in cash and there's no other way to take it. Also the amount is random and there's no mrp on the sim packet whatsoever. I've got the receipt and the total tax component is 0 in it. I had to pay 25 rupees in cash for an item without any price tag.
Who decides what to charge? There's no transparency in it too.

The attachment has an invoice that they gave me. It has stated that total tax = 0 despite being a tax invoice.
Are these tax free?

This is just one case. Imagine the numerous services taken by people all across india and the total tax theft.
The expiration date of a sim as mentioned on the pack is 9 months. Considering a change in this said interval by every customer, the amount adds up to a lot.

I hope these issues would be rectified and strict measures would be taken in the coming time and any other person wouldn't have to face such a problem.

The required documents attached.