This may be mere coincidence … but I wonder if the various ‘Information Commissioners’ have prompted them to tidy-up the databases:
A recent eMail from Sony Europe reads …
____________
Dear Michael,
Thanks very much for being a My Sony account holder.
We delete the accounts of inactive customers, in accordance with data protection laws. We see that you have not recently engaged with us. If you don’t click the link, login to your account, or take any further action with Sony Europe B.V. by 20/12/21, your MySony account and the information associated to it will be deleted.
Simply click here if you want to keep your MySony account.
If you are OK with the deletion of your My Sony account, no further action is needed from you.
Best wishes,
Sony Europe B.V.
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Different style, but maybe the same underlying ‘process’
MichaelG.