dishonest and unclean Laundry

I went to Lilly white laundry, and asked how much they charge, they said R42.00. I took my laundry in the next day, and they confirmed the price with them. Thye said the laundry would be ready the next day same time, which was 8.30am, i went in the laundry wasnt ready. I went back in the afternoon to collect and was told it was R202.00, I was so shocked. I said I was told R42.00, she then added R42-00 per kg. I said the per KG price was not mentioned before, she them said let me re weigh the laundry and suddenly it was R168.00, still not R42-00. I paid the money. When I got back I took the laundry out and the clothes were not properly washere white marks on the clothes. washing powder stuck to the clothes. I have been to other laundries before and they charge per load, and they are upfront about that, and never have I had clothes not washed properly or white marks left on my clothes.