Citroen saxo 1.4i Auto - ECU Fault - large519

I have recently been informed that my ecu is shot, can anyone please suggest the next course of action... Obviously buying a new one is not gonna be feesable, as I expect they are worth far more than the car, so dont really wanna pay out for one. Is it therefore possibe to get mine repaired?? and if so could anyone recommend any good ecu repairers.