Hi horndog and welcome to the forum
Sorry hear about your sick son and dog. Hope they are both on the mend.
When you talk about unrealistic payments what exactly do you mean, and who do you blame for them being unrealistic - the creditors, your IP or yourselves? An IVA which pays back 98% of the debts is rather strange, and what other options were you provided with at the time you entered into it? Also, had you not done anything but carried on struggling, I would suggest that you would have paid more back in interest than the costs of the IVA, so please do bear that in mind.
I suggest that you contact your IP to see if a variation to the terms of the original IVA is feasible.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
To have me propose an IVA for you, please visit:
http://www.melaniegiles.com/ivaEnquiry.asp
See customer feedback at:
http://www.iva.com/iva_companies/IVA_Advice_Bureau.asp