Proof of debt requirement: creditors must file an affidavit with the liquidator by the stated deadline or face exclusion. The liquidator must require creditors in a voluntary winding up to submit an affidavit of proof at the liquidator's office or by post by the specified deadline, stating name, address, particulars of claim and any claimed priority under the LLP Act, 2008; failure to comply excludes the creditor from distribution until the debt is admitted. The liquidator may also require creditors by written notice to attend an investigation and produce evidence of the debt at a specified time and place.