Hello & Welcome to Just Answer,
Sorry I didn't see your question earlier and to hear of any issue you are having with your device.
To help you with this issue, may I ask:
1) The FULL Model Number of the device you are working with?
2) The AGE of the device?
3) What TYPE of computer (windows, mac, etc.) are you using to attempt to get the updated maps?
4) WHERE did you purchase the lifetime updates (Garmin site or somewhere else)?
I see it has been a few days and I just wanted to follow up to see if you have any more questions concerning this issue or if the issue was resolved?
I look forward to any further questions or results that you may have.
Thanks, ***** *****--. .-(im)