The people ringing you are from call centres, where their staff are probably incentivised by the amount of cash collections they make. Their sole interest is to extract money from you, and they very rarely take any notice of IP correspondence.
I am sure that we will make progress with your case during January, and look forward to speaking with you personally soon. In the meantime hang in there, but remain poite and helpful when dealing with your creditors.
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