Beedata using the method of consuming currency balance rather than traffic balance. We have several recharging plan for you to choose. Every plan has its unique deducting rate (let’s say A,B,C,D...) for unit data consumption. And all plans share one basic deducting rate. For example, if you purchase plan A with an expiry date, then your balance will be charged by deducting rate A before expiry date. After the expiry date, your balance of this plan A will be charged by basic deducting rate. Another example is that if you purchase plan A and B, and both of them are within their each expiry date, and the deducting rate of plan B is slower/smaller than that of plan A, then the remaining data of both plans will apply the smaller rate which in this case is the deducting rate of plan B.
Contact your account manager to renew the deducting rate of the plan you are buying.