Events docs

docs/user/usage/aggregation_methods.md

@@ -1,7 +1,7 @@
 ---
 title: Metric Aggreation Methods
 sidebar_label: Aggreation Methods
-sidebar_position: 4
+sidebar_position: 3
 ---
 Metrics can be aggregated in various methods, depending on the way your aggregate your methods will depend on what the metric usage value is. 
 

docs/user/usage/index.md

@@ -11,6 +11,5 @@ How it works is that you have metrics and you then create events reporting new u
 
 * [Metrics](./metrics)
 * [Aggregation Methods](./aggregation_methods)
-* Usage Estimate Costs
-* Pricing Models
+* [Usage Estimate Costs](./usage_estimate_costs)
 * [Events](./events)

docs/user/usage/usage_estimate_costs.md

@@ -0,0 +1,6 @@
+---
+title: Usage Estimate Costs
+sidebar_label: Estimate Costs
+sidebar_position: 2
+---
+When doing usage billing your customers will know to know what the current costs are. However, due to how usage billing works you can only provide estimates of how what the costs are as it's possible events within your system haven't been processed our BillaBear hasn't processed the event fully.