Pathetic Service and sheer incompetency from Leroy and Merlin

I ordered items online for delivery on the 17th August (order 90412). I specified the delivery address which was different from the invoice address. On the 19th, I received a call from Leroy and Merlin (L&M) confirming the delivery address. They had the incorrect one (the invoice address). I was assured this was corrected. On the 20th, they deliver. To the incorrect address. I called the call center and spoke to AV (ref no213228). Received a call from AV assuring me delivery will be done on the 20th before 5pm. At 4:10pm, I call L&M. No delivery. Follow up. They still have the incorrect address for delivery (3rd time making them aware). Assured I would receive a call before 5. Needless to say the day passed, I did not receive the delivery and paid for contractors to sit around for the entire day.