That's the pro-rata billing system in action there. It's the first of the mth, so it's pro-rataing the remainder of this mth, and then adding the next mth on. Doesn't work so good at the beginning of the mth.
Let me make some changes to that pro-rata config . . .
Ok, try it now. It won't pro-rata this mth + the next mth. It should just invoice for this mth.
