Yes, there is a 5k limit for cash withdrawals currently.
You should be able to get larger amounts if you order ahead with your banking rep.
I believe what has happened is a lot of people panicked when the transition from Intercam was occuring, and pulled funds out to another bank - so Kapital may be a little cash shy, and is protecting against a run on withdrawals.
I think we need to hang on and let Kapital make Intercam so much better.