I pre-booked the 'from £26' infill and as there is no option (or pricing on treatwell) to select infill shellac or gel colour, when I got there I was advised it would be £38, so that was annoying as I could have gone somewhere else to get it done cheaper - and better. I had to ask the nail technician to re-do the shellac because it was patchy, and even the second time it wasn't good but I decided it would do.