Maxbhi / Elcotek Telecom — Cancellation of my order from maxbhi

I have ordered 2 spare parts for my oneplus 3T worth rs 1018/- from maxbhi/ Elcotek telecom .i ordered it on 28th june.delivery date was showing 1st july, thats why i ordered.but its been more than a week, there is not update from them.they are showing the wrong delivery date and cheating customers. I did not recive my order i dont need the order anymore.i have ordered the same spare parts somewhere else and i recieved it in 3 days.daily i am checking the maxbhi website there is no update from them. there is no reply from maxbhi.com plzz help me i want my refund back to my bank account my order no is #3496184