When data allowance will be added? Kana/Hiromi December 04, 2018 09:13 Updated Follow Data allowance will be allocated on the first of each month. Related articles What happens if I do not use all of my data allowance. Will the unused data allowance be carryovered? Can I add / Top Up Data in the middle of a month if I used all the Data allowance? How do I check my data usage? What is a Data allowance ? How do I check my bill? Comments 0 comments Please sign in to leave a comment.