Hi michelle and welcome to the forum
I am sorry that you feel you are getting insufficient support from your IP firm with regard to your change of circumstances. Perhaps you ought to try and speak to the IP directly - I feel sure that they will have time to discuss your problems with you.
If you are struggling with the payments, then I would write to the IP with a detailed revised income and expenditure account, and ask them for their advice as to your options. It may be possible to offer a variation to the original terms, to reduce your payments to a more comfortable level, but your own IP is the best person to advise on this.
I do hope that you manage to sort things out.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk