We agreed on a fee for 60-80 ranged, and I paid an extra fee for him to supply the arrows.
After he started the levelling he decided he didn't charge me enough and wanted me to double the payment for him to level to 80, Saying my payment was only enough to get to 70. He then stopped at 65 asking for more money to buy more arrows.
If I had known he was going to charge more after me paying him the first amount I would not have paid, and am now down gp and wasted time that I could have used to level myself.