As I thought, you're dealing with a nest of weasels here
They've sent you a letter stating they have an interim charging order - PHAH whoopy-do this is shear piffle. An interim charging order is meaningless unless a court awards it, so thus far they are succeeding - in rattling you.
here is a link to nationaldebline - they explain all about charging ordershttp://www.nationaldebtline.co.uk/engla ... unty_court
mug-up on it and you'll start getting back in charge here.
You may want to consider responding to these muppets along the lines of 'knowing your rights' keep the correspondence up as they charge their clients a bundle for every letter!!!
Assuming you put in an objection you will get a chance to speak to a judge in your local court - its informal and in his office. He'll be interested to know why this creditor waits until now to apply for a CO
and why they didn't pipe up when they got the CCJ.
If they have got an interim order ( they could be feeding you a load of bunny) then you will get notice of it from the Land Registry.