I had the worst client ever in on Friday first of all I usually finish at 5 but stayed back to start her hair at six because she had put a box dye on her hair. Her roots were a warm orange with white ends. I used a 9.2 to tone her roots and a full head lowlights with a 7.1, when we got to the basin it was still a little warm so I toned it with a 9.01 milkshake dialight toner. The end result was a gorgeous blonde that was all even, she still felt it was too warm at the roots but said she had to leave. I arranged to start at 8am in the morning to tone roots again so she was fully happy with her hair, she agreed and I put her in my diary. I charged her £60 which was undercutting myself but I wanted to keep her happy. She text me that night demanding a refund and saying that she wouldn't come back to the shop she wanted the money paid into her PayPal account. I thought this was very weird and refused a refund and instead offered a toner with complimentary cut and blowdry. She refused, she is still harassing me for her money back but I feel I am within my right to refuse as I used a lot of products and time on her, I feel she has just targetted me because I am 19 and feels she can bully me into giving her a refund. Does anyone have any advice? Am I in the wrong? I have tried to stay so professional but I am literally emotionally drained now. I sat on Friday and cried the whole night because I felt terrible. I hate being horrible to people but i also don't have money at my disposal to fix people's hair for free especially when her hair was gorgeous