T-Mobile updates Insider Hookup promotion to give 20% off to new and existing Magenta MAX customers

Update (01/06/22 7:31 pm EST): The Insider Hookup promotion is also applicable to new T-Mobile for Business customers on the Business Unlimited Ultimate plan. Friends and family who are business owners can also enjoy the promotion. Original story as follows: T-Mobile’s Insider Hookup promotion is getting revamped once again. And as reported by The T-Mo Report, the Un-carrier will be offering new and existing Magenta MAX customers a discount of 20% on their accounts for life. … [read full article]