Testing and test cards
We would strongly recommend implementing this extension in a development environment before putting it live. 
You need to set up the Woocommerce store to use the test account details.
You can then use the following test-card numbers to make sure that a transaction fully completes.
Visa
 Card number 4929000000006
 Expiry Date 12/2018
 CVC 123
Credit Card
 Card number 4929000000006
 Expiry Date 12/2018
 CVC 123
MasterCard
 Card number 5404000000000001
 Expiry Date 12/2018
 CVC 123
Visa Electron
 Card number 4917300000000008
 Expiry Date 12/2018
 CVC 123