White horizontal lines across monitor

Recently I noticed two white lines horizontally across the top of my screen, I know it's not my graphics card because they are still there when using a PS4. Is there a way to fix this since it can be quite annoying on white/grey scenes in games?

The lines appeared after transporting my monitor back to university, could this of caused it? I placed it with the panel facing the seat and a seat belt to keep it in place.

There are more articles out there. I just chose this one.

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