Black Chanel ballet flats size 6.5

Like new authentic Chanel ballet flats. Bought these in Paris about a year ago. Have authenticity card and original receipt. Very gently worn just twice cause they are TOO SMALL (normally I wear a 7 but the sales lady convinced me they would stretch. they haven’t, so pissed). Right after buying them went to a shoe cobbler and spent a ton of money to reinforce the sole/resole (to try to preserve/protect long term) and had the sides stretched (though didn’t work), though none of it matters cause it still doesn’t fit. Can you tell I’m upset lol They are in like new shape. On Chanel.com the price went IO again to $925 (was 790 euros). Dust bags (x2, one per shoe) included. Classic ballet flats. True to size (a true 6.5).