4 4 CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS
The Group makes provision for impairment of receivables based on an assessment of the recoverability of trade and other receivables with reference to the extent and duration that the amount will be recovered. Provisions are applied where events or changes in circumstances indicate that the balances may not be collectible. The identification of impairment requires the use of judgement and estimates. Where the expectation is different from the original estimate, such difference will impact the carrying amount of trade and other receivables and the impairment charge in the period in which such estimate has been changed.
4 CRITICAL ACCOUNTING ESTIMATES AND JUDGEMENTS (CONTINUED)