DEFY from bad to worse

So after months of waiting and complaining on every possible avenue, Defy finally decides to replace my oven. Now here is where the problem lies, I was contacted last week Monday by the Call Centre confirming they will deliver it on Thursday. I explicitly told the agent to please advise regarding the delivery as we still use the stovetop every day, so I was awaiting her feedback. So Thursday came and went and again I was left thinking this is again showing Defy's incompetence's towards their clients. On Monday while at work I receive a call from a delivery driver, he is 5 minutes away from my house, now firstly they did not phone me to make prior arrangements as myself and my husband both work, luckily our housekeeper is home and we quickly phone to arrange that she opens the gate for the delivery. So this delivery person enters my home and firstly removes the old stove. The first problem is that when my housekeeper wanted to remove my baking trays and pans from the bottom drawer she was instructed by the delivery person that she is not allowed and that is part of the oven accessories, which it definitely is not. So he drives off with my pans and trays which I inherited from my late mother and which has a lot of sentimental value. The problems unfortunately do not stop there, as I return home after 5 from my workday I enter my house which is smelling of gas, the delivery person did not even bother to turn off the gas and only put a bag around the gas pipe, which in itself is seriously dangerous and even more dangerous as soon as I explain in detail what else was done. So later my husband gets home and I tell him the whole story and ask if he can maybe connect the stove so that I can proceed to cook dinner. As he moves the stove into place he touches the electrical wire lying on the floor which was connected to the oven and he is shocked, your delivery person failed to turn off the electricity to this wire and left it right next to the leaking gas, can you imagine what could have happened, firstly my house could have burned to the ground and secondly even worse for me as a mother, I have two small children running around what could have happened if they stepped on this electricity cable lying on the ground. it is absolutely infuriating what a life threating situation Defy caused in my house, my supposed safe place. My husband then proceeded to phone the delivery person which in return put the phone down in my husband's ear. I cannot explain how absolutely disappointed I am with Defy and they have now proceeded to put my family's life in danger, taken property which has a lot of sentimental value and cost me money as I will have to replace my gas which was leaking the whole day. I would please like an explanation on how things like this is seen as normal service. I will strictly advise all consumers against buying any Defy products and under no circumstances allow any of their employees in your house as they could have destroyed my house or caused serious physical harm or even worse to my family.