Client remittance/ payment instructions were not documented clearly in the samples noted. Per understanding from local team, when cash is received without client remittance instructions with invoice details, the accountant will call the client directly to confirm the details of the cash receipt. However, this process is not clearly documented by the local team and no written/ documented confirmation was obtained from the client. There is risk in the event that the client does not agree to the application of the cash receipts to outstanding invoices. Additionally, there is no evidence of review and approval over cash receipts voucher and package.