credit limit fee
No, a company can not charge a credit card without permission. This violation should be reported immediately to your credit card company.
"Whether a debtor keeps credit cards after filing bankruptcy is up to the credit card company. If you are discharging a credit card they will cancel the card unless you reaffirm the debt. Even if you have a zero balance the credit card company might cancel the card."
Contact your bank or credit card company.
No...you need to call your credit card company and file a complaint.
That decision is up to the credit card company. If the corporation is relatively new or had no credit history, the credito card company might demand that you personally guarantee the debt and you will need to have a credit check. If you have been in business a long time, the credit card company MIGHT not require a personal credit check.
any amount due them
Common ones are - monthly interest, and late payment fees.
When you charge more than your current credit limit
Yes
after 30 days or sooner
added to the balance
45