nothing to be confused about
they don't have your new address
they've sent a phishing letter to see if you'll respond
if you don't they'll issue a letter of claim to the last address you let the original creditor know about
them 30 days later will raise a court claim and win by default.
Crazy as it sounds, a judge would see your lack of communication as evidence of you trying to avoid your debts therefore you would have no grounds to set aside any backdoor CCJ.
That's why you need to keep them informed
Many thanks for taking the time to reply. If I remember correctly, you helped me out back in 2013... wow, seems like yesterday, how time flies!
What do you think I should be asking the Trust for in terms of documentation?
Don't touch them owe me £500 since January 2019 make excuse after excuse. Seem they always have software problems sending money out. Keep saying they will call back or email nothing been chasing it now for 6 mths the phone staff always have the same banter we will chase it up and get back to you then nothing!