Donuts,
I think before anyone can give you a detailed answer your post, we are going to need you to divulge a little more information, please.
I assume that it is a five year arrangement and you have effectively not yet made the first payment.
I wonder if you could please advise the level of your contributions over the 60 months (Assuming it is a 5 year arrangement), the level of any equity to be introduced, the total value of your creditors and the proposed return to creditors by the end of the arrangement.
It frustrates me no end when I see people posting on here with complaints that they are unable to speak to anyone at their IVA providers - not because you complain, but frustration that these businesses are giving others a bad name.
If the reasons for contacting him justify it, I am inclined to suggest that you look at the letterhead of Payplan and look at the bottom to see who the IP's are licensed by. Find your IP's name and drop him a line, marked 'For addressee only' In your letter state that you have attempted to contact him / a member of staff on a number of occasions (If you have details as to when, then provide those to him) and explain why you have been attempting to do make contact. If you fail this warrants a complaint, ask for details of the complaints procedure. Go on to say that in the absence of a response from him within say 10 days, you are going to have no option other than to ask for the answers via his Licensing body. You will find you should get a response.
Tell it like it is.
Tell it like it is.