You can simply log into your account from : https://promo.kaleyra.com/ and follow the below steps:

  1. Once logged in, click on "Manage Items" and then select "Manage SenderIDs" as show in the menu.
     
  2. Once you are in the senderID registration page, go ahead and apply for the same sender ID that has been approved on the DLT Platform for your Company by clicking on "New+"
     
  3. On submitting the same, the status will reflect as "Pending". This will be internally reviewed and will be approved or declined (With justification) within 30 mins.