WD External HDD MYPassport

Hi,

I have 2TB External WD HDD. I was copying files from 2TB to My friend HDD. I have copied 150 GB after that I have try to copy more files and It hanged and stopped working. After Unplugging the device and I have plugged again. There is no drive shown corresponding to the external HDD. I have contacted and explained the scenario.

If I plug HDD device drivers got installed and I can see the same from drivers managers. But I can see the drive from my computer. I can see only the internal hard disc partition.

western digital support people told me that this problem because of file corrupted in the hadr disk. They have suggested that please to recover using software available in internet. They were not suggested which is best fit. simply they have told me that just download software from net and do. I have taken my HDD to stellar a company for data recovery. They send an estimation ( can any body tell how much you expect).

Please help me if guys have come across such situation and solution

Thanks