Did he cut your hair? I agree having confidence is very important. The £25 is about right.
It's done like this. There is a bowl of warm. liquid wax. I presume this is the same as used in women's salons. A standard cotton bud is dipped in the wax, removed, allowed to cool momentarily, the cotton bud is inserted in the nostril and gently moved around to make contact. A second bud is dipped and inserted in the same nostril. One bud presses upwards, the other down. This is repeated on the other nostril. The wax hardens and then both buds are removed with a single sharp downward tug. It sounds painful but isn't. Yes, there's a momentary sting sensation but it's like having a sticking plaster removed. Ripped off its hardly felt, slowly peeled off and it hurts.
The really good guys have a very clever trick for removing hair from the outer surface of the nose, the fleshy part. I only know one who does this. He makes a cat's cradle like thing with cotton and uses this like a pair of scissors to snip off the individual hairs