Damn Glasses!

My pretty new glasses have to go back because there has a been a fat cock-up with them.
My vision is worse with them on than without.
I picked them up on Saturday and have been wearing them around the house as I was told by the dude in the store but everything STILL looks like it's sloping and I can't focus on words properly. I really have given them a chance but it's just not happening.
Mum is coming with me tomorrow to talk to them about what the hell I need to do. A re-test was mentioned when I was there because I complained about the problem straight off. My main concern is extra charges...if they do that to me then I'll flip.

This has all just been a big pain because I need them. My eyes a fudged.