The joys of online-only customer service: a few months back, eBay spotted – and stopped – some fraudulent sales going via my eBay account. The sales incurred listing fees, which eBay promised to credit; today, eBay threatened to send debt collectors round to recover the fees which were nothing to do with me and which they’d promised to credit.

I’m trapped in a system that I’m sure you’ve encountered too: you email eBay, they promise to do something, they don’t, they threaten you, you reply, they promise to sort it out, they don’t, they threaten you, you email…