At what stage did you decide not to go ahead ? If it was before the creditors meeting it should not apear anywhere. If it was after the creditors meeting it will remain on file for 6 years from that meeting date.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014 http://foggy.blogs.iva.co.uk
I would suggest that you check all three agencies files on you and ask each that show the IVA why. Explain that the IVA was never started and ask them for the source of the erroneous information. You may need to get the Information Commissioners Office involved.