Terrible unreliable service from DSV

I received a call from the call centre agent that my parcel will be delivered to me on the 14th of May 2021 between 11h00 to 14h00, I was requested for an alternative contact number as I declared that my handset is giving me issues., subsequent to that I received a message that the the delivery is on its way at 11h58. I waited outside and my alternative number (husband number) was contacted he advised that he will be at home in 2 min however Iam at home the driver must knock at the gate. I waited outside and 5 min later I contacted the call centre at 12h27 and I was advised that the driver's number is on voice mail and the agent promised to call me back which never happened . My husband and I also tried contacting the drivers number several times and it was on voice mail, I called back the call centre at 13h31 raising my concern and I was advised that they also tried reaching the driver to no avail and once again I was promised a call back which I never received. I called back at 14h10 and I was advised that the driver could not get hold of me and has already returned the parcel back to their offices, Amanda the call centre agent tried to connect me to the driver and he said there is nothing he can do as he was in my premises and I was not available, I had taken a day off to wait for the driver and I was outside from 11h58 waiting for the driver which never showed up. I have now been promised another call back as the matter is being escalated for a late delivery which I doubt will happen. I am very disappointed and not sure what to do as I will be travelling on Sunday. can someone look into this matter argently.