There should be no reason why you can't put forward a DMP - Andrew Graveson of Brightoak would be happy to talk to you and has a number of people under debt management with as low as two creditors. Definately worth a call and you can find his details on the sister site iva.co.uk where he posts as an expert.
For an informal chat about any financial difficulties, or advice as to the options available, I can be contacted via my website - www.melaniegiles.com
A DMP can be an extremely useful tool if used correctly. I agree with Melanie that a DMP should be your first step whilst you consider a more permanent solution (eg IVA or BR). This will keep the creditor pressure off with affordable monthly payments whilst you consider the next stage.