why must there be an expiration date on these seals?!? Its just too punishing for something that is so rare

Forgotten Limbo Seals should not have an expiration date. They are also far too rare. Deboreka gear is excessively rare and hard to enhance, thus making it very expensive indeed. All these things should be fixed, so you don't need to grind hundreds of hours to get a pen debo.

I agree with this. I just had some very busy month at work and lost 2 limbos just because I was to tired to start up BDO. Really makes me want to quit the game with these kind of mechanics in already stressfull time period.