During the process of using services at the company, customers who need to change the email address to receive electronic invoices, please do the following: 
1.    Send an email to acd@phs.vn using the email address that the customers have registered with the company.

Email template here.

2.    The company will respond to customers with the results within 1 working day of receiving the request.
Customers need support please contact Hotline: 1900 25 23 58, email: support@phs.vn