Hi and welcome to the community. Occasionally there are sabers that have been built with a cosmetic non-working recharge port. If you haven't been charged for this feature and did not receive a specific charger... then you should assume that this is the case.
Contact
customerservice@ultrasabers.com with your questions and include your order number. On the off chance that the look of the port is not what you want on your saber... then you can also discuss this. A photo with your email would also help. Give US up to a week to respond and likely will be within a few days next business week.