5 Year Guarantee worthless

In December 2014 we had our roof repaired by Behrens Roofs. In January 2015 they came back to finish the second layer. Aftter they left the roof had more leaks than before. We made numerous phone calls and sent sms's to the owner requesting him to please come and repair the roof. He promised on numerous occasions to come but just never pitched up. Needless to say 3 months have passed without a reply from him. We had an expert to come and look at the roof and he confirmed that the work that he did was not even worth 1/10 th of what he charged us. We wasted our money needless to say the damage suffered to our contents due to the leaks.