Is it permissible to combine two products to get a 100 Riyal discount to cover a financial deficit, or to keep the amount without the knowledge of the client or the company?

The employee is an agent of the company he works for, so it is not permissible for him to add a customer's item to his own items in order to get a larger discount without the knowledge of the company and the customer. This is because it is considered consuming wealth unlawfully and is religiously forbidden deception.