Wow that is RIDICULOUS ... they must have the worst, most inept staff ever !!
There is NO excuse for making so many mistakes. The Mgr should address it & get the right amts to you ASAP. If she doesn't make it right, call the BBB AND tell her you will also contact the local quilt guilds etc
I know the chain stores hire non-sewers & HS kids, but a good LQS should have staff who KNOW & CARE about what they're doing ! I used to work at a LQS, if there was a mistake, we made it right for the customer Asap