Medlife — misleading the customer with fake promocode to book the orders

Dear Medlife,

This is the complain wrt my order no OR0957JXB-001A dt 24 th Aug 2020 .
As per the promocode one item seacode capsul 110 was free of cost with the discount of the cost of this item.
Now when I received the medicine this item seacod capsul was removed stating not in stock.
Also no refund was done for this free item .Not even they given any alternate promocode or item.
This totaly mean that all these promocode and free item is only for booking the orders after that these are removed and practicality fooling the customer.
If I have used the other promocode I could have got the additional discount.
This is totally unacceptable being a wrong practice of doing business.
Medlife is using fake promocode for booking the orders and misleading the customer.
I called 7 times to customer care but no response they always say we will get a call back and no callback comes.Finally after long discussion with customer care they told there will not be any refund for this free item.and they put my call on hold for 10 mins and then after call got automatically discounted.
This is the way medlife is manuplating and attactracting customer and while final billing remove the promocode or free item