it's been a minute but if memory serves you should be going under "wallet" then it should give you option to "use primal wallet" then it should ask to "activate wallet" at which point it will want a name and email, you will get emailed a verification link. verify and you should be all set. They generate the public key as human readable and after its all set you should be able to look under your profile settings page and see it listed in the lighting address spot. If not take the address they gave you and enter that in. Let me know if that works!!