Poor service

I cracked my cellphone screen so i take it in for repairs. They tell me its going to take 2-3 weeks. I call them at the end of the 3rd week to find out wats goin on because they dont call to update me on wats going on. I call and they tell me that my phone will be ready soon and they will let me know when its available. Its the 4th week now and they are telling me that my phone should be available next week monday (in the 5th week). I would not have an issue if they could atleast have the deacency to call and update me.