Non Existent Delivery and No Conatct

I ordered goods on line with Leroy Merlin 1 week ago. Delivery was scheduled for 21 March 2025, which was a Public Holiday. They were advised to Deliver on Thursday before 10h00. Delivery arrived in the afternoon !! No one available to collect. LM were then advised and agreed to deliver on Monday 24 March 2025 between 10h00 and 12h00. No delivery was made. The LM call centre unable to contact there delivery section despite 3 attempts, all went to voice mail I am told. The CEO Mr Dufourq needs to review his processes and communication channels. I initially thought LM would be better than Builders Warehouse but looks like they are not. Poor showing.