Failed Delivery

My parcel was onboard the Courier vehicle at 07:19:36 this morning (22 April 2024), however received a message from Fastway Couriers at 17:23 (22 April 2024) that "the courier was unable to deliver your parcel, your Fastway courier has taken it back to the depot", with no explanation or reason for failure to deliver. We'll attempt delivery again on our next delivery schedule. I find this preposterous as I was home the whole day today due to the initial message that the parcel due date was today and NOBODY contacted me to attempt delivery. I have logged a query with them and shall receive feedback once they have investigated????!!!!! This is totally unacceptable, shoddy work.