Leroy Merlin can't get the job done

I ordered flooring from Leroy at the start of January and selected one of their contractors to do the installation. He was under the impression that we could do the job in about a week or 2 from the time of the order, as he had worked with them before. When I heard nothing for nearly 2 weeks, I went back to the Fourways branch and discovered my email address was completely wrong- and not even a complete address. Also, for the name of the complex, which I had spelt out, the assistant had written 'Complex', with an incorrect street address too. They had tried to email me at that non-existent address. When I asked them to correct my details, they said that it was not possible after they had created a profile. I called the number provided online for Fourways the next day and was told I should have called the manager, as they could correct it. However, I was told she would correct the details, which has not been done a week later. Expecting my job to be done this week, before my kitchen is installed next week, I was told that the delivery of material would happen on 8 Feb. An sms received yesterday said the job would be done on 17 Feb - 5 weeks after placing the order. The contractor and his area manager said they have called Leroy to ask them to hurry up (and also to try to trace the original quote, which I did not receive because of the incorrect email address). Today I called and spoke to the Duty Manager at Leroy Fourways and ended up having a huge row with her. All she did was reassure me that the material would be delivered on 8 Feb and that the missing PVC would arrive from the suppliers when possible. IU said I thought some sense of urgency was needed and real concern for my complaint, but she just defended what had happened and said that the contractor was probably lying to me, as no one had contacted Leroy. I do not know how she knows that the contactor and his area manager had not contacted anyone, as she did not ask who he had contacted, and the contractor also contacted me every time he had conmtacted them to update me - I am not sure why he would do that. I also ordered a door from Leroy when I went in to find out what was going on with my first order. It took a long time to pay, as the system said there was no stock, yet we were looking at 3 doors. After several calls, I was able to pay. 2 days later, I received an sms saying the courier had collected the door, leading me to believe it would be delivered that day. A day later, I received a message saying it was out for delivery, leading me to believe it would be delivered that day. 2 days later, it was delivered, and we were called to carry an extremely heavy door upstairs as the driver couldn't manage on his own. Luckily, my son was home as I wouldn't have been able to carry it. Yesterday I unwrapped it, and there are parts of the door on the edges where the brown wood is visible through the white paint, and there is one part that has been painted badly and which has sharp bumps in the paint. Absolutely hopeless! I used Leroy Merlin as I thought you would be reliable, professional, efficient and polite. Clearly, I was wrong. Never again!