That is definitely not normal. After a week I would say it's normal to have a little chipping, but certainly not after just two days.I have acrylic nails with the french maincure, but I get gel over it , which helps tremendously. It costs five dollars more, but it's well worth it. My manicure lasts me a full two weeks. I really doubt they'll give you your money back, but they may offer to redo them.I would show the owner of the shop as soon as you can get there. If they won't accommodate you, I would find a new salon.
Good Luck!