The woman I spoke to told me that they sent these alternative
(inadequate in my view) feet because it's part of a new European
regulation that the original ones should be replaced by stick
on ones.

Like about 99.9% of "European regulations", this will almost certainly be
********. The vast majority of "European regulations" are either made up on
the spot or are national legislation unrelated to the EU.

What regulation did she state, the Replacement of Metal Feet by Unsafe
Plastic Tat Regulations?

Christian.