I like that you are already with a debt helping company, I am in the same boat. My question is could you cope without remortgaging. I have always refused hands downto remortgage & am glad I did now, I only have about 11 years to pay on mine.It seems a lot but not when I think I've had the same mortgage for 14 years, it doesn't seem that bad.
I'll also hold my hands up, we have had probs with Halifax & nearly had the house repo'd but I slogged it out with them, which even ended in court but because we were offering to pay the arrears of at an affordable amount,the judge sided with us, the halifax backed down, accepted the payments for the arrears & we are still in the house 7.5 years on.
Keep your head held high & think about the remort