Charging double the price for a hairstyle I did not want

I phoned early in the week to make an appointment at Carlton Hair Longbeach Mall, for Friday for my 11 year daughter and her friend for a Valentines Dance. I booked for 2 updo’s which the lady said would be R250 each. I decided to visit on Thursday to show a pic of my daughter with her curly hair which I wanted them keep. Firstly the receptionist said they were expecting us today, on the Thursday. So we rescheduled for Friday. On Friday I arrive with the 2 excited girls to get an updo. Whilst waiting, I decided to pay. The lady charged me R760. I said I was quoted R500. The lady gave me some excuse that my daughter’s updo is more difficult and takes longer. To not spoil the moment I paid R760. The hairdresser did an ok job with my daughter’s hair even though she made it dead straight. She kept emphasising how difficult these updo’s are. I thought she had finished but she quickly undid my daughter’s hair and quickly pinned it up but neater. It looked exactly like a wedding updo which I was trying to avoid because she’s only 11 years old and not a middle-aged woman. By the time we reached home, every curl was dead straight. Between the 2 girls’ updo’s, they both took the same amount of time and I was fine with R250 each. However, my daughter’s hair was exceedingly disappointing and not worth the whopping R510 I paid for. I feel they blindsided me on what was supposed to be a special occasion. I can’t expect my money back, but they’ve just lost 2 customers: myself and my daughter.