The Mobile Store — fraud employee and management

Address:

250 Diamond Harbour Road, Behala, Kolkata - 700060, Kolkata, West Bengal, 700060

The mobiles store newly open at behala kolkata 700060 opposite of old mobile store. All employee told me same they are employee of the mobile store (Essar group) but when i want purchase a samsung mobile they dont have stock they managed the stock beside a local mobile shop and give me a computer invoice with print of mobile store invoice. I know that any retail store not purchase any single product at local market. That's why i suspect company fraud me or they cheat.
Please take action this type of fraud system or fraud people
Store address is 250 diamond harbour road, behala, kolkata - 700060 opposite bank of baroda behala branch