Existing Customer/Participant may use the available credit balance when making a payment online during registration or to an outstanding balance. 

Available credit balance will only show on the payment page. See screenshot below. 
  • For Outstanding Balance (Use my available credit balance | Credit balance remaining "$x")
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  • Making a payment upon registration ( Credit Balance Information Apply "$x" of your credit balance to this order)
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Click here for Participant Online Account Overview & FAQ