The Drug World - Rude Insulting Behaviour of a Shop Keeper

Dear Sir,

My name is Moloy Chakraborty i am from subhasgram
Today **th April **** I purchases one Neopeptine child Syrup from Drug World medicine shope in Subhashgram Kolkata ****** so after payment done I focused that medicine coverd pack is broken so one of a another shop keeper came and understanding me as a arguing tone with rudely that they ar not manufacturing those madicine they can change but they can't accept my problem when I am conveyancing him that is not your fault you can say your supplier but again he is rudely saying I am wrong insted guiding me also making me lye also he used insulting sentence " আমি কোনো কাস্টমার কে entertain করি না এত" so I need the clarification of this I need clarification