Hello@kingboo i really appreciate you having a look at this project. For your information the stack tokens are not lost forever, remember they are your assets and so you can always withdraw them and sell them on exchanges when listed when the token sales is over. Also, if you would also have a keen look at the roadmap you would see that the team also plans on making use of the TELE tokens to purchase airtime and bundle subscriptions in the nearest future.
Thanks for having a look and you can always refer to their website and whitepaper for more information. All the necessary links have been provided above.