Bought Chanel Shoes at NM But Need Bag

I have those shoes in black. I love your two tone look. I find that my shoes like that are too big in the heel. I bought a size 38 which my S/A says is the US equivalent of an 8. I have a hard time keeping them from slipping up and down when I walk. I need to take them to the shoe shop and get a half insole put in the heel. The kind they put underneath so it is not seen.
Congrats on the shoes and I think the GST or Petite Shopper in the beige/cream color would be great with those shoes.