What happens after I finish High-Speed data? SakuraMobile December 05, 2018 08:22 Updated Follow You can use the internet at a reduced speed. You can top up for High-Speed data. Related articles I am confused about unlimited data. What does unlimited data service mean? How many Data amount do I need? What is the actual speed? How do I check my data usage? How do I Top Up? Comments 0 comments Please sign in to leave a comment.