VUMATEL ARE USELESS

They Are Absolutely Useless, I've taken of from work 3 times this week now I must take off again everytime they are giving me an excuse. ITS LIKE THEY DON'T KNOW WHAT THEY ARE DOING AT ALL, 3 SEPARATE TECHNICIANS NON OF THEM COULD FIX THE ISSUE. AND HOW MUCH YOU WANNA BET THE ONE COMING TODAY WILL ALSO GIVE ME AN EXCUSE.