Very poor customer service!

I wrote a complaint to booking.com about a refund as well as the owner of an apartment i rented in Cape Town where the owner **** about things being included in the reservation, he made me pay twice for a a night when i did let him know that we are arriving a day later and staying a day longer (told me i had to sort it out with booking.com). He owes me money for the breakfast i paid for and now avoids my messages. The room was dirty. My daughter and i got bed lice from the bed. I wrote to booking.com, they responded with the lies the owner (Josh) had told them. I sent them actual proof of our conversations. The owner owes me more than R1 000. They offered me EUR 25 and no response after i sent them the proof. Very disappointing.