Woodland Sandals — damaged ny product while claiming warrenty

I bought a pair of sandals in the month of march.Cover under where the foot rest what they call as the sweat laether got damaged .I claimed the warranty they repaired it in a time of one month.I found that the main sole was damaged as there were two cuts on the sole which occurred during the repair.I told the head over there, they told me, that it would not create any problem, but now its's completely torn off and is unuseable.PLEASE help me...