Kleritec claim I owe money that I do not owe. Sylmar California

I was notified by the company  January 2014  about a one time deal of art supplies. I paid $223.86 for these supplies,  a couple months later I received another box of art supplies, i did not sign for these as the UPS guy left them outside in my yard, ( I live on a busy highway) I called and told them i was sending them back and I didnt want them , they tried to tell me it was part of the "DEAL" I had no deal with them.   Instead of fighting with them i sent a check for $327.86. (WHICH WAS WAY TOO MUCH)  I have a good line of credit etc , My husband is a federal employee and we go by the rules in life.

After reading the internet on how this compay is scammers I knew i was done with them , I then received another box of stuff in which i sent a check for $240 like the invoice noted,,, I called them and we were finished. Today I get another bill for $418.75... I do not owe anything,  My lawyer is involved with this as well, and I feel I owe nothing for this stuff I know isnt over  $200 in total if I woudl go to Wal-Mart and buy it,, they are rip off artistes is what they are, I try calling them and I am on hold for  10 - 40 minutes before I hang up, my time is important to me as well, I feel I owe  them nothing.