anchor.diff:  
   [[Subscription]]Subscription:: A contract between your organization and a customer to purchase a particular product/service with particular terms. Kill Bill associates a subscription with a <<Plan,plan>>, an <<Account,account>>, and a start date.
   
  -Subscription bundle:: See <<Bundle>>
  +Subscription Bundle:: See <<Bundle>>
   
   == T
   
  
positive.code: 
  [[Account]]Account:: A record that contains details about the customer such as name, address, email address, phone number, etc. Also referred to as a "customer account."
  
  == B
  
  Billing Period:: The frequency in which Kill Bill invoices the account for one or more subscriptions. Kill Bill supports the following billing periods: DAILY, WEEKLY, BIWEEKLY, THIRTY_DAYS, MONTHLY, QUARTERLY, BIANNUAL, ANNUAL, BIENNIAL or NO_BILLING_PERIOD
  
  [[Bundle]]Bundle:: A collection of subscriptions associated with a single service instance. For example, a customer might have a base subscription for her phone, plus an add-on subscription for international dialing. Because both subscriptions are associated with the same phone, they are collected into a single bundle. An account may have several bundles, each with one or more subscriptions. Also known as a "subscription bundle."
  
  
negative.code: Price List:: One or more plans that have discount/special pricing. Price lists are defined in the <<Catalog,catalog>>.
  Along with price lists, you define <<Rules,catalog rules>> that specify which price list to use if a customer changes plans.
  
  Pricing Tiers
  Also known as "tiered pricing" or "price tiers."
  {A common subscription and usage charge model where pricing changes are based on the incremental number of units that are purchased. For example, 1-5 users are charged full price and 5-10 users receive discounted pricing. A customer purchases 7 units. Units 6 and 7 are discounted, and the first 5 units are charged at the full price.}
  
  [[Product]]Product:: A product or service that the customer can purchase (or rent/lease). A product can be associated with multiple <<Plans,plans>>, each plan specifying different ways the product can be purchased (e.g., a monthly plan and an annual plan).
  
  Proration
  {Adjusting a customer's bill amount to reflect any plan changes made in the middle of a billing cycle.}
  
  == Q
  
  == R
  
  Refund
  
  {A refund returns money to a customer - as opposed to a credit, which creates a customer credit balance that may be applied to reduce the amount owed to you. For instance, refunds are used when a customer cancels service and is no longer your customer. Refunds can also represent processed payments that are reversed, such as a chargeback or a direct debit payment reversal.}
  
  [[Rules]]Rules:: The rules that determine how Kill Bill should behave when a plan is created, cancelled or changed. Also known as "catalog rules."
  
  