Credit purchases over a certain amount qualify for a credit bonus (see our FAQ "Credits" section). For example, a $US1,000 credit purchase will receive 1100 credits. Purchases over $US5,000 will a 15% bonus. Purchases over $US10,000 will receive a 20% bonus. See the table below for details.
Purchase credits from Envoy - see "Purchase GridMarkets Credits". To access Envoy, you will first need to establish a (free) GridMarkets account - then download/install Envoy.