Your credit limit and cash advance limit should be indicated on the instruction sheet for receiving credit cards. If not, please check with the issuing bank.

It may be that the amount you want to withdraw exceeds your cash advance limit. If you can still overdraw, you may not get the original cash advance limit because your remaining credit limit is not enough.

It is better to bring some cash for domestic consumption, because many businesses are unwilling to pay bank charges. I often encounter such a situation.