As with most downloadable software products, all Virtual Items purchased by you are non-refundable. You'll need to contact Google or Apple for refund requests. They will help you in detail.
Depending on the price of the package that you refunded, diamonds will be deducted from your account in the game since some players abuse this; 5 or more reimbursed accounts are automatically reset and permanently banned by the system.
If you refund a Season Pass, diamonds will be deducted depending on the value of collected premium rewards.
What should I do if someone has made an unauthorized purchase on my account?
You are responsible for the security of your account and ensuring that no unauthorized purchases occur on your account. Masomo is not liable for any unauthorized purchases (including fraudulent purchases or purchases made by minors). If you wish to pursue a refund for such purchases, you should contact your bank or the payment provider such as the relevant app store.