Don't worry as you do not need to own a PayPal account to pay: you may enter your credit card's data directly at PayPal and complete your payment. You don't need to register a PayPal account either.
1)MAKE SURE THE "PAY WITH DEBIT OR CREDIT CARD" OPTION IS SELECTED
If your PayPal page looks as follows, just click on "Pay with Debit or Credit Card" or "Check out as a Guest".
2. ENTER YOUR CREDIT CARD'S DATA
Address, email & phone number may also be requested depending on your country.
When you are done, click on "Review and Continue".
3. CLICK ON "PAY NOW"
4. CLICK ON "NO, THANKS" WHEN ASKED ABOUT CREATING A PAYPAL ACCOUNT. YOUR ORDER IS COMPLETE!
DONE! YOU WILL SHORTLY RECEIVE YOUR ORDER CONFIRMATION EMAIL TO CONFIRM YOUR PURCHASE! ENJOY SHOPPING :)