Understanding Post Pay billing charges

If you use the Post Pay billing model, you can make changes at any time during the month. If required, the date of the change can be backdated within the given month.

If the change is backdated to the beginning of the month, then the month's usage is re-calculated (re-rated) on the new package, which is reflected in the bill. In this case, service charges are on the new package for the full month.

If the change is dated in the middle of the month, usage after the change date is charged on the new package. Service charges then appear as two prorated service charges:

• On the old package, from the beginning of the month until the change date.
• On the new package, from the change date to the end of the month.

Package changes that are applied during a day are backdated to midnight of that day. For example, a package change on 10 August at 20h00 is recorded as 10/08/yyyy 00:00:00. Any usage during that day is re-rated on the new package.

Example 1: SIM on Package A changing to Package B.

Request received on the 10th of the month, backdated to the 1st.

Creates:

• Service charges: 1st – 31st of the month on package B
• Usage charges: 1st – 31st of the month on package B

Example 2: SIM on Package A changing to Package B.

Request received on the 10th of the month, not backdated.

Creates:

• Prorated Service charges: 1st – 10th of the month on package A
• Usage charges: 1st – 10th of the month on package A
• Prorated Service charges: 10th – 31st of the month on package B
• Usage charges: 10th – 31st of the month on package B