safeer mall ajman Phone Number

Hi, Recently I purchased a Samsung phone J7 prime from techorbit they told me it's have Warranty from Samsung store since I bought this phone is having many issue battery problems mobile get stuck hanging all the time so I went to Samsung store they refuse to repair they told me it's doesn't belongs to Samsung warranty I went to the shop at safeer mall they told me we will repair it in Samsung service center and will show you the proof, but they fail to show me any documents which show that the phone is repaired at Samsung and still the phone is having same problems kindly I do not want to repair or replaced this phone as they selling fake phones and lying to customers I want my refund amount or els I will raise police complain against them many thanks.