How can I use my ESN access code? I use it in esntest.com

Step 1: Please register a New Account in our etllearning.com

refer to: https://www.etllearning.com/how-can-i-register-a-new-account/

Step 2: Login, redeem your access code and use

refer to: https://www.etllearning.com/where-can-i-enter-my-access-code/