RAM couriers LIES and withholding my parcel!

Been trying to get my parcel delivered to me since Friday. Every day there's a new excuse. On Friday apparently the driver was at my address but I was not available (which is a lie as I was waiting for the parcel at home the entire day). I was told the issue would be resolved before the end of the day by customer service but never heard back from anyone. On Monday I am told that my address cannot be found (although I've had several other couriers find my address with no problems). Again I was told by customer service the issue would be resolved before the end of the day and my parcel will definitely be delivered before the end of the day. But no one ever arrived. This morning when I phoned customer service I was told that my parcel had not been despatched today as they couldn't find me at my address yesterday. What the heck guys? False promises and lies every day. Just deliver my parcel already! ????