They cannot force you to take a secured loan rather than a remortgage. They are not the same thing, which is recognised by the inclusion of secured lending in new protocols alongside remortgaging.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014
If your paperwork doesn't specify secured loan in the equity then they have no leg to stand on in trying to force you down that route, they may try bully tactics but hold out and don't let them dictate.
Last Payment made 04/12/14. Completion Certificate 25/7/15. IVA company GT. No Issues
As the other 2 have said - if they cannot show where you agreed to a secured loan it cannot happen.
IVA started March 2011, Completed March 2016 and certificate issued 11 days after final payment. It was not always easy but then some of the best decisions aren't.