Test credit card numbers
https://www.paypalobjects.com/en_GB/vhelp/paypalmanager_help/credit_card_numbers.htm

American Express - 371449635398431
American Express - 378282246310005
American Express Corporate - 378734493671000
Australian BankCard - 5610591081018250
Diners Club - 30569309025904
Diners Club - 38520000023237
Discover - 6011111111111117
Discover - 6011000990139424
JCB - 3530111333300000
JCB - 3566002020360505
MasterCard - 5555555555554444
MasterCard - 5105105105105100
Visa - 4111111111111111
Visa - 4012888888881881
Visa - 4222222222222
Dankort (PBS) - 76009244561
Dankort (PBS) - 5019717010103742
Switch/Solo (Paymentech) - 6331101999990016
