How to cancel the contract package of Mango Unicom 19 yuan?

(1) Unsubscribe channels: Mango TV mobile phone client, H5 page, business hall, WeChat official account "Unicom Changshi";

(2) Effective principle of unsubscribe: users cannot unsubscribe from the contract package products during the contract period, and the free traffic period of the successful unsubscribe month ends at the end of the month, and no charge will be charged from 1 of the following month.

Validity period of membership: from the date of collection to the same time of the following month (for example, membership will be opened on July 28th, and the validity period will be from July 28th to August 28th). The specific membership rules are subject to Mango official website.