it keeps doing this

[a.britt.fca]

i am a student that has homework on this site and i cant get stuff done because the site says i havent done the thing i just completed this has happende more than once and it sucks

[vtmcalhaney]

Me too. I've supposedly gotten to level two but then back at the home page I'm still exactly where I was before. Tired of doing the same lesson and never progressing . And then no one helping fix it