How long does it usually take to update a manga cover?

[XYZed]

I followed instructions and reported this manga title, requesting its current landscape cover to be replaced and updated with the portrait one that I added in the covers section, and yet it's been almost half a day and I'm starting to fear that my request has just been ignored since it's something trivial and not worth changing...
Or this could be a normal occurrence and it's just taking its time? I dunno.. I can't help but wonder...

 

[sterven]

@XYZed

it's been almost half a day

My guy its fucking New Years let them have the holiday then they can get to it.