No price increase, yet seeing "cancelled due to not agreeing to a price increase" at end of trial

For a lot of users, we’re seeing the following in the dashboard at the end of their trial:

Had their subscription of Weekly Premium With Trial (weekly_subscription_499_with_trial) expire

2026-01-03 at 07:03 AM UTC

Had their subscription of Weekly Premium With Trial (weekly_subscription_499_with_trial) cancelled due to not agreeing to a price increase

2026-01-03 at 07:03 AM UTC

Last opened the app

2025-12-31 at 06:23 AM UTC

Created a new alias (...)

2025-12-31 at 06:23 AM UTC

Started a trial of Weekly Premium With Trial (weekly_subscription_499_with_trial) from offering premium_wmy_with_trial_offering

2025-12-31 at 06:21 AM UTC

First seen using the app

2025-12-28 at 03:01 AM UTC

This is despite us never having raised subscription prices, especially not during the 3-day window. We’re concerned this is costing us conversion.

The “cancelled due to not agreeing to a price increase” event has the following data:

{
  "app_id": "...",
  "app_user_id": "...",
  "cancel_reason": "PRICE_INCREASE",
  "country_code": "KR",
  "currency": "KRW",
  "entitlement_ids": [
    "ad_removal",
    "premium_features"
  ],
  "environment": "PRODUCTION",
  "event_timestamp_ms": 1767423816728,
  "expiration_at_ms": 1767421269000,
  "is_family_share": false,
  "offer_code": null,
  "period_type": "TRIAL",
  "presented_offering_context": {},
  "presented_offering_id": "premium_wmy_with_trial_offering",
  "price": 0,
  "price_in_purchased_currency": 0,
  "product_display_name": "Weekly Premium With Trial",
  "product_id": "weekly_subscription_499_with_trial",
  "product_price_in_purchased_currency": 0,
  "purchased_at_ms": 1767162069000,
  "renewal_number": 1,
  "store": "APP_STORE",
  "takehome_percentage": 0.85,
  "transaction_id": "390002037008166"
}