Some more delightful comms from this bunch:

Is there any way they can hurt my credit rating by escalating over time, or will they presumably have to go through a court process before it ever gets near that result? If they can't even be asked to write to me and pay for postage I figured it was pretty speculative, but will be looking at a new mortgage at some point this year so could do without any aggro on that front!

Hi folks - first post, as I'm somewhat annoyed/concerned that an issue I thought had been dealt with has reared it's ugly head today. Long story short, I used a parcel booking service to pay to ship a cardboard bike box overseas in October '16. This was all fine in terms of goods arriving, until I received an e-mail 11 days later stating my parcel had been measured by the courier as bigger than the stated dimensions and therefore I had underpaid by approx £50 for the volumetric weight. The service I paid for cost £30 so as you can imagine I was less than impressed! I was so convinced it was attempted fraud I reported them to Action Fraud and cancelled my bank card, as the small print of their T&Cs state they will attempt to recover the amount they consider outstanding after a short period. Their justification for the additional charge was nonsense after I disputed the additional cost, and even their own website disagrees with the way they attempted to justify it. I also liaised with the parcel carrier directly, but aside from intervening to try and get the booking service to see sense it just went round in circles. I asked for information that was never supplied, but eventually sent them the pictures of the parcel which I'd taken prior to shipping, with a tape measure in shot, in early December which they wanted to use to generate a refund to them from the courier before they would wipe out the invoice. All went quiet until early Jan when another copy of the invoice arrived by e-mail, which I quickly responded to. At this point I was told the opportunity to appeal with the courier was past and to pay up. I queried whether the photos I'd sent had been passed to the courier but received no response. I chased this again a few weeks later asking if no news was good news and if my previous e-mail had been received - again, no response. I assumed until today they'd either got the courier to refund and hadn't bothered to communicate with me, or they'd just lost interest. My last comms to them was end of Jan '17. Today, by e-mail, I received the following from an e-mail account called Admin Judges which I've anonymised a bit: I found this site by searching for the company name, but the references are quite old. I presume that rather than acting for the company concerned they have simply bought some packaged debt and are chancing their arm at minimal cost to themselves and see what they get back. I've had no letter in the post, but I imagine the costs and threats will escalate over time? I can afford to pay it - that's not the issue - but I begrudge the slimy way they've attempted to get extra money out of me - seems a common tactic for the firm concerned. Sorry for the long post and thank you to those that have read this far - what advice from well informed regulars on how best to deal? Many thanks