Is Lu's phone 24 hours a day?

The applet placed an order, but there was no text message with nvo order number. I've been working on it, and I don't know if the order is successful. I want the customer service to make a phone call, but the line has been busy. This shopping experience is too bad.

It's the first time to order food by telephone customer service, and I still feel very convenient. If it is ordered by telephone customer service, it will be delivered from Shanghai headquarters. The customer service staff has a good attitude, but there are some exceptions.