FILTHY after empty flat has been 'cleaned'

I am writing to you as a very unhappy first time customer, we have moved and needed our empty apartment spotless and clean in order to get our deposit back, we decided to try your services thinking that it would be easy and would be CLEANED, we even added extras for an empty apartment i.e.window cleaning, oven cleaning, wall cleaning and cupboard cleaning. I was allocated Masabata Selina Nkomo. I let her into the apartment and left as i had to go to work. i booked her and paid for 6.5 Hours and paid R309 for her services. I popped back into the apartment at lunch time 13:15 to be exact and found her sitting on her phone in the bedroom on a bucket. I asked her if everything was ok and she said that she was done, i thouht nothing of it and didnt mind if she was done earlier if everything was completed. I let her out the apartment and even dropped her off down the road to make it easier for her to catch a taxi ( at that time i took her on her word that things were cleaned as i didnt have time to check everything as i needed to get back to the office) when i went back to the apartment just after 4 i had time to look at the apartment and THE PLACE WAS FILTHY!!! i have attached some pictures of the 'after the clean' this is absolutely horrific! i want a refund or for you guys to send someone who is competent and can actually clean this apartment and not waste my money! i need to hand over the keys for this empty apartment by Thursday and need something to be done about this! have attached my invoice attached for your perusal as well. Enjoy the pics as i had a sense of humour failure that i need to micro-manage your staff in order for them to complete a task they are paid for! Inv no: SS23****2. i have also posted on your facebook page and expect this to be rectified immediately