Terrible takalot service wont fix wrong address of thier doing

Very annoyed tonight I made a order on the 12th of March. On the 14th I received a msg to say my package was at the distribution centre, which is only 5km from delivery address, and it would be delivered on Monday the 16th before 17:00. On Monday 16th at 15:00 I received another msg to say the courier is delayed, so delivery will be rescheduled to the 17th before 15:00. Today the 17th nothing untill after 17:00 when I recieved a msg to say it couldn't be delivered as I was not available which is not true! I then did some investigating only to find that the delivery address on my account and the address given to the couriers did not correspond. I tried to call the customer service but after holding the line for 30mins with no answer I put down. I then sent an email which got rep**** just after 19:00. I asked them to please correct thier mistake. Only to be answered that they cant change the address once it was with the couriers! I dont see why I have to be penalised for thier mistake? Now I have to wait longer than the delay that was advertised cause they messed up and refuse to rectify it!!!