Tranh tai tri thưc Service
Tranh tài tri thức is a service which provides Vinaphone subscribers a wide range of information from different categories namely sport, economic, transportation, etc.by short videos. Especially, subscribers using the service will be able to register into different special promotions with many chances to get big rewards
Customers who register the package service, can be able to access and experience the whole value and content of the service on the website/wapsite
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