README.md in africastalking-ruby-2.1.5 vs README.md in africastalking-ruby-2.1.6

@@ -330,9 +330,10 @@
 	       ```
     	- `destinationChannel`: This value contains the name or number of the channel that will receive payment by the provider. `REQUIRED`
     	- `destinationAccount`: This value contains the account name used by the business to receive money on the provided destinationChannel. `REQUIRED`
     - `currencyCode`: 3-digit ISO format currency code (e.g `KES`, `USD`, `UGX` etc.) `REQUIRED`
     - `amount`: Payment amount. `REQUIRED`
+    - `requester`: PhoneNumber through which KPLC will send tokens when using B2B to buy electricity tokens.
     - `metadata`: Some optional data to associate with transaction.`REQUIRED`
 
 #### Mobile Data
 ```ruby
 payments.mobileData options