Each of these is the same Korean brand, shipped from somewhere in the UK by a seller with only feedback as a buyer.
https://www.ebay.com.au/itm/283021550414 ($48.98)
https://www.ebay.com.au/itm/New-Crossover-27AHIPS-AdobeRGB-B… ($45.85)
https://www.ebay.com.au/itm/New-Crossover-32FX144-CRONUS-180… ($43.95)
Is this just a series of bad typos or something sinister?
Yes, definitely sus as it would cost more than that just to ship the monitor worldwide. Someone's account/s probably got hacked.