Hey @zz_tovarishch & Commission, thank you for the payment 
Just there seems to be a misunderstanding:
x / 27,356,903 CKB = 15k USD / 65k USD
~ x = 27356903 CKB * 15 / 65
~ x = 6,313,131 CKB
Please, could you double check this?
If you can confirm, could you give us guidance on what should be done about these additional 8,777,063 - 6,313,131 = 2,463,932 CKB ?
Sending them back should be doable, allocating them towards the next Milestone is doable too, no trouble on our side
Phroi