best cc for add in paypal and send money

hi dear
pls help me about
1-in last days i make some pp acount but paypal accepted some card and dont accepted other
can u tell me withch card is better for paypal
2-in day how many usd can i send from cc aded in paypal to other paypal
3-if my paypal is for us and send money for AU is important same country or not
4-why a pp when i sended 1$ for test to other paypal accepted and another paypal told to me contact with paypal
5-when paypal reply to me cant send money and contact with paypal
tnx

pls help me