This error message may appear when you’re trying to adjust your subscription preferences in the following cases:
1. You purchased a subscription via the Apple App Store or Google Play Store and tried to apply a promotional offer or change your subscription
The Apple App Store and Google Play Store handle the billing for subscriptions purchased on their platforms. As a result, promotional offers cannot be applied to such subscriptions, and attempts to change your subscription via our website won’t work.
If you’d like to change your subscription, follow these steps if you used the App Store or these steps if you used the Google Play Store.
If you’d like to benefit from future promotional offers, we suggest canceling your current subscription and, once it expires, purchasing a new one via our website once an offer becomes available.
2. You signed up for a free trial and tried to apply a promotional offer
The option to apply a promo offer while your account is on a free trial is currently unavailable. You’ll be able to benefit from future promo offers after your free trial ends.
3. You purchased a Superhuman Pro subscription and tried to apply a promotional offer from Grammarly
Grammarly promotional offers do not apply to Superhuman plans.
If none of these cases apply, feel free to contact our Support team for assistance.