After completing the purchase, you received an email look as following From PayPal.
Log on our website by using Your paypal email and the Invoice No .
Here is an example.

PayPal
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Dear Cards4Students.com,

This email confirms that you have received a credit card payment from YourName(youremail@xxxxxx.com).
The email above is your LOGIN!


View the details of this transaction online



Payment Details

Total Amount: $25.00 USD
Currency: U.S. Dollars
Transaction ID: XXXXXXXXXXXXXXXXX
Invoice ID:   XXXXXXXXX
    The above Invoice No is the can be used as PASSWORD!
Sales Tax: $0.00 USD
Item/Product Name: AnadoluCard
Item/Product Number: 10953
The following options were included with this payment: 0: 0
Buyer: YourName


Shipping Information

Address: YourName
1234 25th St. 1FL
New York, NY 10002
United States
Address Status: Confirmed




Thank you for using PayPal!
The PayPal Team



PayPal Email ID PP341