Week shoes

I recently bought a pair of hi tec sensor low waterproof shoes too do my work in , I haven't had these shoes for 2 months even and already the bottom knobblies are falling off , I'm a rep aswel so the shoes aren't put too there limits everyday , and I don't hike either , I'm dissapointed because it's the first time I'm buying hi tec and they just aren't worth it they are actually ******* , rather spend that little bit more and go for a more reputable brand , I will aswel from now on , just very disappointed, I even got my brother too go and buy the same pair , that's how much faith I had in these shoes