This situation should be the company and the travel agency to reach an agreement, by the company for your employees to provide a letter of guarantee as a guarantee. But because the company has no confidence that your employees will be able to return to their home countries, they can only collect deposits from your employees.
At present, according to the regulations of the Tourism Bureau, the deposit for 囯归国 is mandatory, but it does not have to be given to the travel agency, but to the bank contracted by the travel agency (designated by the travel agency), and the travel agency, the bank, and the tourists will sign an escrow agreement.
Once the tourists are stranded, the deposit will be returned to the travel agency, and the travel agency will be compensated.