Supreme Locksmith

This company installed two locks at my home. The work was not completed properly. Now the door does not close completely allowing air in the house, and the tech did not install the stiker plate on the dead bolt. I called them several times and sent an email message. One person told me there is nothing they can do. They charged me and I paid $276.00 for the work, I want it completed properly.
It was Supreme Locksmith INVOICE NUMBER *** PAID 2/14/20