Change the ruling for mutual home exchange

After spending money on booking removals, changing my children's school, packing and living in hope I was moving away from harrassement of nighmare neighbour and my children finally being able to live a normal life and learning how to socialise and play in their own garden a thoughtless time waster couple pulled out of our arranged exchange 2 weeks before move date with no notification what so ever. It was only that i asked my housing manager why I hadnt recieved my final letter that she informed me the couple had informed her that they had pulled out and had told me. This resulting in me losing money I couldn't afford, my children being upset and as this was during summer holidays I was unable to sort the schooling situation out so I had no choice but to tak my children to school they was due to start in the septemeber, this cost me £40 a week in petrol costs but I sacrificed on luxeries so my children could remain at the school because it meant they was safe away from the harrasment and the level of education was so much better. I have recently seen an influx of people with similiar stories and dissapointment and enough is enough. 

It's not fare that people are allowed to play with others lives in this way and the councils and H.A sit back and do nothing. There should be a point in the mutual exchange process where a person can no longer pull out and should continue with the exchange.