Online iphone purchase

I ordered iphone 11 then after ordering and paying them they didn't send me link to track courier guy.When i asked why they said they working on it. Then on the day of the delivery they told me my iphone got delivered to the wrong address which i knew they were lying because even the person who was delivering didn't even try to call me and tell me he's at the gate. Then they told me to pay another money for delivery which i don't understand why because its their fault. Then i asked for refund then they told me to send my banking details on the email they sent me so that i can get refund from 10-12days. Later i found out the contacts they posted on their instagram website don't work.