Thanks for your quick response.
Yes both methods are relate to PayPal.
When I enable the option to pay with credit card in my PayPal Profile settings, the user have the option to pay with credit card without the need to create PayPal acount.
then after the Paypal trunsaction the user redirect to my site with no transuction information ( "tx" is empty)
I open ticket in PayPal waiting for response.
Thank you Again.