Mine is £90 every 6 weeks but so worth it, I had bleached and damaged mine too and my new hairdresser (well I say new, I have been there about 7 times now!!) has really sorted it out for me.
I had to have a lot cut off at first but I have the length back now, and the condition is perfect. She is going to lighten it again for me for our wedding next year but she has the right stuff to do it!
The £90 at mine includes wash, special conditioning treatment, colour, cut and blowdry.