Serial Number Is Duplicate: In Your Cart

Same number.

She hadn’t typed anything. The monitor wasn’t even plugged in.

But the red text appeared beneath the second item: Serial number is duplicate in your cart. She frowned. That was impossible. She had added two separate listings. She refreshed the page. The error remained. So she removed both, cleared her cache, and started over. serial number is duplicate in your cart

She compared the number on the back of the device to the one in the refurbished listing.

The screen—which had been off—was glowing faintly. A single line of text in the center: Below it, a timer: 00:03:47 . Same number

The agent put her on hold. When he returned, his voice was quieter.

This time, she added them one by one. The first unit—serial ending —went in fine. The second—serial ending L907 —triggered the warning again. But the red text appeared beneath the second

But that was impossible. Her monitor’s serial number had always ended in .