Just come on here to say that I wish I hadn't got a consolidation loan.
At one point I borrowed 15K to clear a loan and a credit card. They whacked on 6.5k interest. Taking the total debt to 21.5k. On top of that I also had a credit card which due to a series of unfortunate events, creeped up to 8.5k. Taking my total to 30k 
I had found out about Money Saving Expert at that point, and I wrote to the CC company, asking for help. They froze the account, no more interest was added, and I started paying it bit by bit each month.
Had I known that's what I could have done, I'd have done that with the other CC and loan, and saved myself 6.5k. It actually makes me feel sick if I think about it too much.
But I don't want someone else to go through this!
Go onto MSE, they have templates for letters etc.
Debt is now down to 13k. So although I have cleared 17k, I could have been down to 6.5k by now 
Good luck OP. No judgements here. Shit happens.