Hatchback boot top seal replacement

Hi all

First time poster. Apologies if the question has been asked before. I have not been able to find it.

On my 2015 Octavia Hatchback the seal / rubber strip at the top of the hatch has started to come loose. Actually it started a couple of years ago but it is getting worse as the strip dries out. Obviously I have tried glue with limited results.

I have been unable to find a replacement anywhere online - maybe because I don't know exactly what tog search for. I keep getting results for the seal that goes all around the opening but I cannot find the top strip.

Does anyone have a link or a part number to where I should be able to get one?

Best regards from a long time fan

Christian