Replying to Messed up toe

Short story

Went to SKI RACK they fitted me for wrong size, now my toenail is about to fall off and I cant ski Im going there in the morning.

Details;

So I went to the SKI RACK in burlington VT and wanted to get fit for some boots. The dude measured up my feet and recomended the techina agent 110 in a size 27.5  I tried it on and it was oviously too small. I said this and he replied " You asked for a preformance boot and that is what it should feel like, I can fit you for a ski boot or a lodge boot its up to you but I will not warrenty any size bigger than 27.5" (SKI RACK warrenties fit for any "race" or "preformance" fit for three years ) So I was dude it doesnt fit so I tried a 28.5 and it was wonderful he then convinced me that I didnt know anything and  it was suposed to feel like that. So I bought the 27.5 skied it five times know my right big toe is swollen purple and the nail is no longer attached to the toe (it kinda hinges at the back where it grows from) I can barly walk let alone ski  I am going there tomorrow morning to see what they are going to do about it.

My question to you

I just dont understand how a shop that is so highly regarded and respected screwed up I was straight up with the guy and he didnt listen to me. What do you think they should do? obviously fix the boot issue but They just mounted my skis and If I have to change boots they will have to be remounted... I got new boots this year so I wouldnt have an extra set of holes in my skis (their alpha 1's so gettin a new pair this year isnt happening) I just dont know!