Help please with "Satisfied" status

Hello,

Ive posted previously about a collection agency (Cabot) chasing a debt I did not agree with. Soon after I sent out the prove it letters the debt moved to another agency (Apex)..I again sent the letters and they stated they did not have any file information I had requested so they had referred it back to Apex, then Apex wrote to me saying they did not hold any information and had referred it back to my original lender, Barclays. I heard nothing after this however someone called CL finance continued to make defaults on my credit file every month. I have just ignored this as ive had a baby and have been preocupied. Today I received a letter from Robinson Way with an old address asking me to call them to "validate" something. So I looked at my Experian account to see if I could find out why. Now from the 20th October 2013 (4 days ago) my accounts with the CL finance defaults say "staisfied". So I now have 4 records held 2 x CL finance defaulted in 2008, satisfied 4 days ago. 1 x satisfactory, settled in 2010. 1 x default in 2008, satisfied in 2011. So my question is...what does this mean?! Have they acknowledged I dont owe the debt? have they sold it on? Is my file ok? Im confused and cant seem to find the answers anywhere. Many thanks in advance for your time.