Deals&offers — Products are not working

Address:	Burdwan, West Bengal
Website:	Deals&offers

I have purchased a power bank of 25000mah of samsung, 64gb micro sd card and branded head phone but all are not working condition. I want to replace my product.
From
Mouli nath nandi
Advocate
Asansol court
Address qtr no e/ 06, polo ground housing estate, asansol
Po and ps asansol dist west burdwan
State west bengal
Pin code 7133304