If you want to withdraw cash through overdraft, the withdrawal amount is 50% of your credit card limit, and each card can only withdraw up to 2000 yuan a day. There is a handling fee and interest for overdraft withdrawal. The handling fee is 0.5% of the cash withdrawal amount, with the lowest in 2 yuan and the highest in 50 yuan. There is no interest-free period for cash withdrawal, and the bank will charge interest at the rate of 5/10000 per day from the date of withdrawal.

According to the information you have given now, your limit is 16000, so the withdrawal limit is 16000*50%=8000. Since the balance is 5200, it means that you overdraw 5200 yuan, so the available line is16000-5200 =108000. The withdrawal amount is less than the available amount, and the maximum withdrawal amount is 8000, but each card can only take 2000 per day, so it can be withdrawn at least 4 days. If it is another situation now, assuming that you overdraw 10000 yuan, then the available line is 16000- 10000 = 6000, and the cash withdrawal line is greater than the available line, then you can only withdraw 6000 yuan at most.

If you don't understand this, ask again.