Tell us which screen had the problem and what you did before it happened. You do not need to send original photos, sticker files, or payment details.
This page reflects the service and platform behavior currently available.
What to include
Tell us whether you use iOS or Apps-in-Toss, along with the device model, operating system, app version, affected screen, and steps. If a screenshot is essential, redact names, photos, order numbers, and other personal information first.
Photo and sticker issues
Check photo permission and free storage, then try another photo. If automatic cutout fails, use the manual editor. The original photo is not needed in your support email.
Ads and privacy choices
On iOS, check the network and consent state if an ad does not load. The privacy-choice form can be reopened in Settings. If an ad appears after purchase, try Restore Purchases first.
Purchases, restore, and refunds
Apple or the platform that actually sold the item handles payment and refunds. Never send card information or account passwords. Send only the restore result and the error state shown by the app.
Data deletion and support records
Delete local data from app Settings. Images exported to Photos or another location must be deleted separately.
Ordinary support inquiries are kept for one year after closure. Purchase, refund, or dispute records are kept for three years unless law requires longer. Email hello@mmche.studio to request access, correction, or deletion.
Business information and contact
- Data controller
- Mustardmustache
- Privacy officer
- 설지환 (Representative)
- Grievance and access request desk
- Mustardmustache Privacy Team
- hello@mmche.studio
- Business address
- 2F, Unit 4, 78 Saeun-ro, Giheung-gu, Yongin-si, Gyeonggi-do 17079, Republic of Korea