Forms Download If you require further assistance, please contact your dedicated sales consultant. For business customer Application for Contestability Application for Contestability Form.pdf Application for Contestability - Master-metered Account.pdf Letter of Authorisation (Contestability or Novation).docx No Company Stamp Letter.docx Revision of Contracted Capacity Request For Revision of Contracted Capacity Form.pdf Request for Revision of Contracted Capacity Authorisation Letter.doc Other forms GIRO Application Form (Account No. with 10-Digits Only).pdf GIRO Application Form (For Account No. Starting with "BC").pdf Account Closure Form.pdf For residential customer, please click here.