Lot Mobiles — 5% cash back purchase on HDFC card

Address:

Hyderabad, Andhra Pradesh, 500061

Today I purchased Flame 8 LYF mobiles 4 numbers in Vidyanagar store, the total value is Rs.16800/-. After purchasing Lot executives are told that if the bill is above Rs.20, 000/- you will get 5% discount . After one hour I went to Lot store to purchase one more mobile. But Lot people told you won't get 5% discount.
Same day same person with same HDFC card why it is not possible.
~bhaskar
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