Zara complaint: Items delivered to wrong address/not received

Delivery was suppose to be on the 26 November between 5:30pm and 8:30pm. An email was sent stating my parcel was delivered at 6:33pm, I saw this email at 7:45pm. I was in my house all day and never received a delivery. I checked the photo which states delivered to front door/porch. It was dark but could see the parcel was on the floor by a brown fence. My husband went looking as it was heavily raining and the parcel is a cardboard box. We found where abouts it had been delivered it was not out street or postcode it was at the back of our property in the road by our 7ft fence that has no access. He searched but the parcel was not there. I contacted Zara explaining the parcel was not delivered to the address I give and the parcel was not where they delivered it on the photo. I provided photo evidence of the delivery email with couriers photo and my actual door that it was suppose to be delivered too. It was nearly £200 of clothes for my son that saved for, for Christmas.
Zara stated they done an investigation and could no longer take this further as items showed delivered correctly. I requested what evidence of the investigation they completed as this was untrue but they have refused to send this on multiple occasions. I have ordered so many times from Zara never having a problem but the customer service I have received has been awful not helping me at all and expects me to just lose £200 when the fault is not mine.