As an accounting/Auditing specialist, could you advise the accountant?

Excused from any person either he is GM not acceptable, however if the event manager did a marvelious job he should submit the expense with bill or any type of approved proof otherwise the amount will remain in the event manager fund which will be receiveable or adjustable,

It is well konwn that the first step in the accounting cycle is the documents that cover the accounting transaction. Without documents there will not be registeration for any transaction.

In this case, the legal affairs department should make the required investigation in this subject and raise its report to the management of the company supported with the available documents of investigation (including any formal documents even from the police station or the security of the event) and management has to decide in writing and provide the document to the accountant to record the necessary entry by charging these amounts to expense or on the personal account of the responsible person

without an evidence you can't record the bill, Ask the manager to produce duplicate bills, or endorsed/approved evidence to discharge his liability.

The company's cash control and separation of duties is not adequate.
The accountant should not be also responsible for giving cash to employees.
Otherwise, it's easy to have such situations where missing cash will be covered up by the accountant.
On the other hand, if a separate person (other than the accountant) was responsible for handing out cash and that person had no control over the accounting records, then that person would be pressured to get the necessary invoices / receipts for any cash spent.
Otherwise, what would he say to management regarding missing cash?

Assumed Accountant is the cashier.Assumed for payment of AED50000, there was approval from the Competent Authority.Assumed in this case the Competent Authority is the GM.Manager submitted bills for AED12700.Assumed these bills were approved by the concerned Competent Authority through his superior.Assumed the manager made out a signed statement of Account scrutinized and recommended by his superior.The bills submitted were individually attested by the Manager scrutinized by his superior .Reason for non submission of the bill is specifically explained.Grounds were convinced and scrutinized by superior and approved by the Competent Authority,GM or any higher Authority if specified by company Policy under these circumstances.If there is no specific Authority mentioned in the Company Policy. The Authority having power to approve the Company Policy has to approve/condone  the missing bills. The Cashier Accountant is not the Competent Authority foa all the above except payment against appropriate approval.

Without an evidence & approvals Accountant can't record the bill, Ask the manager to get duplicate bills, which is not a difficult process.

Otherwise, Managment have rights to make deductions/ redund or adjustments.

 

The manager should be made to refund fully the amount advanced to him. Where he has outstanding bills he should forward same to the GM for settlement.

in this case, the expense summary of AED 47k duly signed by the Accountant with oral or written explanation to the GM is required...