Network to unregistered devices will be banned???

https://preview.redd.it/hts24j096lde1.png?width=1003&format=png&auto=webp&s=8885ddb433f049812eb7f27859fa0ef124db91e5

Do you think it's practical? I mean, how will foreigners use a SIM card here locally?
How should locals register their unregistered devices?
Do we need to pay a tax on them?
What if we’ve lost the purchase receipt?
Has anyone been able to register their device after this notice?
This is going to be a new headache.