[Resolved]  Dell Vostro 1400 — Received faulty part

We received our laptops as part of a bulk order in which the order was for 160GB hard disk, a DVD writer and bluetooth. The laptops we recieved had 120 GB hard disk with a combo drive. On complaining, all the laptops were replaced with 160 GB harddisk and a DVD writer. Now, my laptop crashed and it was not detecting the harddisk. When I ask for a replacement, I received a 120 GB harddisk. On calling Dell customer care immediately, they asked me to send back the part, which was taken by the technician. Basically, the earlier change of parts was not updated in Dell's information system. Even the customer care guy has no idea what to do now. He closed my call with no further communication. I don't know whats going on and when will the part get replaced. My system's service tag no - is DXQQ1BS