can i know if i add bank account to paypal ,can use to online buy thing ? what difference with add credit card

guy....i just first time start to use paypal. when i press pay to buy thing,it give a message say :
PayPal is constantly working to protect our members against fraud. We review every transaction before it is approved, and we may block a payment when we detect a potential risk.

Our reviews take into account every aspect of a transaction, including looking at both parties. These decisions help us maintain the integrity of our payments network in the same way as other payment processors: by declining transactions with an unacceptable level of risk.

While our fraud measures occasionally block a legitimate payment, to maintain overall security, we cannot overturn any decisions about an individual transaction.

If you decide to continue this transaction using a different funding source, please note that the associated risk levels have not been decreased.



need someone to tell me what the problem......

yes ,i did.... i do all the paypal code thing