T-Mobile has inadvertently canceled some longtime subscribers’ free-line promotions, causing frustration among customers. The forced migration to new rate plans included price hikes for many users, but the unexpected loss of free lines could be a much bigger hit.

However, the company admitted the issue and is working on fixing it quickly. T-Mobile stated that promotional discounts were not applied correctly following the migration, leading to some free lines being incorrectly deemed paid.

The problem isn’t isolated; T-Mobile acknowledged further issues with incorrect billing for services like Hulu after the mass plan changes. The company apologizes and promises to resolve these issues swiftly.

With its priority on ensuring customers receive their promised benefits, T-Mobile hopes to smooth over this minor but significant hiccup in customer relations. Only time will tell if they’ll achieve that goal without too much fuss for their users.