"Inappropriately sold" in what sense?

French advertising law is pretty strict - it has to be in French, can't mention competitors, and generally French advertising is much less informative than in the UK or elsewhere, I guess because of the restrictions on making claims.

I do know that returning goods to a store can be a nightmare. But my impression has always been that the stores set their own return policies pretty much as they please.

Over the past weekend, I did catch an article in a German news magazine about how they have found that "bank counselors" are ripping off customers to push financial products that yield big commissions to the counselors. Have never seen that accusation in print in France - though I've always been suspicious of the counselors' constant push to "make an appointment" to discuss your finances.
Cheers,
Bev