32E and 34DD, are almost the same size, an E cup is the same as a DD. If she is the height she is size 10 is probably right, with 34 inch back. Many agencies and parlour list a girl under a different name, sometimes with different details to make her look exclusive to them. I would go with whoever is cheapest. I've yet to meet a genuine 18 year old escort, she will probably be early 20s.