Hi Alan
I've had success with ECUtesting in the past, in fact they recently repaired a C-class ECU for a customer of mine when the two repairers that I favour most (Actronics and ATP Electronics) could not offer a repair.
I believe Actronics and ATP can also repair these.
The advantage of repair of course is no coding is required, depends whether you have a machine that can do it.
Shaun