Can it be repaired?

I have been told by 2 plumbers that my boiler has flooded due to the condensing pipe being missing and the water has gone back into the machine instead of being drained off. I have had no heating or hot water since oct 2011 but the company who installed it don't want to know. What I'm asking is- can the boiler unit be repaired or is it a right off as both plumbers have stated? I have been told this will cost around £1,400.As I am unemployed can't afford that. Any ideas?

P Broadfoot
June 2012