Security doors

Sequre came to fit a trelley door in my house. They drilled to close to the frame and broke out big pieces of wall. It looks horrific. At my sliding door to my patio. I phoned the office to report the damage. They insisted I pay the balance or they will take the keys with them. They promised to come out and have a look. Never heard of them again. They really ruined my door frame. VERY bad service and installation. Treated me like a child. " pay or we take the gate's keys with us" not interested in the damage they caused at all.Please there are a lot of other companies to use