Ack! Sorry to read that these fab pink shoes aren't comfortable for you I hate that, when I get all excited about something and then it doesn't work out.
I don't think you should 'try' to make them work. Send them back.
Inge is right, every foot is different and all the brands are quite different from each other. I take different sizes in different brands, and have found that even some of the most highly recommended for being comfortable aren't necessarily comfortable for me.
Hang in there...we'll all just have to go on pink shoe finding mission. If I see anything in my shoe shopping travels, I'll be sure to post on YLF.