Xpressbees Logistics — refund or replace for iphone 8 plus

Address:

Dwarka more metro station nist road near kd bankit hall, 110078

I have order a iphone 8 on july 9th of 2019, then i received the order on 12th july 2019 but the product i received was not iphone8 instead of that they gave me a 8plus and also it was a clone. I was not satisfied with the product what i got so i complain to them to replace the phone or refund the money, first they said they will come and collect the phone and refund for it on 15th july 2019 now they have block my number in whatapp which i used to chat and contact with them and also they are not picking up my call now. So please help me.