Big Bazaar / Futurebazaar / Future Retail / Hometown — security breach at palava xperia big bazaar

Address:

Xperia mall Palava, Thane, Maharashtra, 421204

We purchased few garments from big bazaar and later realised that one of our garment was not un-tagged. Next day when I reached them to correct it I forgot to bring the bill but discussed the same with Security before entering the premises. Later when the cashier was not able to untag the garment he asked to exchange it. She untagged that but didn’t removed the pricing tag so the alarm buzzed again and the security whole staff behaved so rudely and unprofessionally. I was so embarrassed in front of so many people. And they didn’t changed the dress asyme to get the bills.
Photos attached.
My questions are:
1. Why the cashier didn’t untag the garment initially?
2. Why the security let us go even the alarm raised during our check out? Assuming it as a false alarm.
3. Why the security allowed us next day to enter again without bills?
4. Why couldn’t they regenerated the bill from the system and resolve the issue there it self?
5. Who allowed them to behave unprofessional?
6. Who will be responsible for the damage of my image in front of so many people?

I will never ever visit big bazaar after this incident. Specially Palava Xperia Big Bazaar.