Complaint Review: Quality Auto Parts

I was quoted 880 including shipping for receiving passenger and driver airbag+ dashboard, clockspring and the airbag control module (5 items). They later asked for 250 more for shipping as they miscalcualted. Now we are shipped only the dashboard witht the passenger airbag and they refuse to send the rest of the order. I am not able to get Sandra the sales person on the phone (they say she is busy and out on a break or on phone with another customer and I get to talk to Linda instead) but we had 20 conversatios and we went over the parts many times before we placed the order. This has been going on for so long and I have never had worst experience dealing with an entity before