Aviva Slingback Pointed Toe Pump

I bought these online and was super excited about them. The ones I received the light tan colored pair were soft suede and look great. It was a lot frustrating when I put them on and they were an entire size to large. I could not even walk in them. They are going back tomorrow. I may try the next size down if they have it in my store. I hope anyone else buying these has better luck with sizing.