Not getting the E5 Express Train.

Hi there, i have currently finished on completing and obtaining all the 9 trains. I am on level16 for my rail wallet. Which supposed to unlock the E5 Express Train’s but i am not seeing the E5 Express train card on the list of all the other trains cards Appearing. My question is will you release the E5 Express train’s? Cause i am currently waiting to purchase the train cards and complete that train also. Hope to hear from you soon. Thank you