How to cancel the traffic package that has been ordered?

The specific unsubscription methods for different traffic packages are different. For example, the method to cancel the Guangdong 3G domestic traffic package is as follows:

〖1〗Log in to the online business hall/RGJEtzu;

Guangdong fast food package: 5 yuan for 1GB/RGJEf9Q; 10 yuan for 3GB/ RGJEfCm;