ccj help needed

[vishnu75]

hi all on 24th dec 2015 i received papers from northampton court from cabot financial ltd and drysden solicitors relating to a capital one credit card debt. i acknowledged service of claim online but as yet havent entered a defence. i have sent cabot a cca letter sent recorded which i have proof off, giving them 12+2 days to respond its now 12 + 3 days from signing for letter and still nothing.at the same time i sent drysden a civil procedure rule 31.14 letter which is now 10 days since signing for and again still nothing so where do i go from here regarding submitting my defence?? my defence was going to be the debt is statue barred as i have not made a payment or spoke to anyone about this debt since 2008 ( cabot claim 2010 by the way ). but can my defence be statue barred plus non compliance with requested documentation?? any help would be muchly appreciated cheers