he always uses very bad words to opposite side when the prices in your mind are not same as what he asks you for...also, i i said him i dont wanna deal with him anymore because of very late delivery, which he promised everytime he would give the accs in the future right on the time
First thing first, he should mind his language and pay much attention to keep his promises taking the best responsibility. Think twice if you are really determined to work with this guy !