Poor online and delivery services.

I ordered a small 60cm Christmas Tree online on the 17th of December. Estimate delivery on their website stated Friday the 21st. Called and followed up and I was told it would 100% be delivered on Monday, it is currently 17:40pm and I still have not received anything. The tracker even says it’s been delivered but have not received anything. I called and they said it is out for delivery????? WHAT IS GOING ON. I even suggested I rather go and collect on Friday already and it was promised that it would be with me on Monday so I didn’t do that. What is taking so long?

They keep saying they will get back to me but never do?????? So frustrated.