We have had those in an IVA added as an additional cardholder on company accounts with no issue, as the debt is with the company, not the cardholder. You are not raising credit, so they should not credit check you --- but these are my thoughts only.
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