Even if Amigo had accepted the IVA your guarantor would still be liable for the payments you missed. We can only offer sympathy and support sorry. It doesn't help you or your guarantor but your situation isn't going to get any better soon so you need to come up with a plan B. Was Amigo the deciding voter with 75% of the debt in your proposal? If this is the case then an IVA just isn't the path you need to keep treading, you may seriously need to think about bankruptcy if like you say you are going to lose your house anyway. I hope it all works out for you but there are paths you can take, some not as palatable as others.
Last Payment made 04/12/14. Completion Certificate 25/7/15. IVA company GT. No Issues
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
Bob Marley. http://kallis3.blogs.iva.co.uk