I bought a set of compatible cartridges for a Brother LED printer in May. When I inserted them they wouldn't register.
I tried every test known to man and finally wrote to the supplier. Not hearing anything from them I got ChatGPT to search for them. They had stopped trading. THey traded as Stickink.com which is/was a trade name of Solar Electronics Ltd.
How I came to buy from them is a story in itself but I wish I hadn't.