What is the strategy to setting up divisions in an LLC and why is this good for me as owner?
I presume you are referring to Series LLC.
If so then I invite you to read our article about this entity type: Series LLC: Advanced Form of Business Organization. It has a lot of information, and answers many of the questions you might have about it.
(a) You made a typo in the card number, CCV code, expiration date, name or address;
(b) Your card balance is too low;
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