Bonus OKs in games on Odnoklassniki, what to do?

Question

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We recently talked about the introduction of the division of OKs in Odnoklassniki into 2 types: simple and bonus. More details in our group: https://ok.ru/apiok/topic/65790394728568
This topic undoubtedly caused a heated discussion about how to be and what to do, and we are ready to offer our own solution.
The main payment method FAPI.UI.showPayment (and its analogues, depending on the platform) has an attributes parameter for passing key-value pairs of additional transaction settings.
We offer:
* bonus OKs will be used in the game only after signing the corresponding additional agreement
* regular (non-bonus) OKs are debited first
* to prohibit the use of bonus OKs when paying for bonus OKs, the developer sends the "restrictBonus" key with the value true
* when making a payment, our payment system adds the "baseOKs" and "bonusOKs" keys to the callback request with the corresponding payment amounts for the developer to understand which part of the OKs was of each type.
What are the possible difficulties on the part of developers with this approach?

Answer 1

With this approach, goods will be divided into regular and bonus goods.
Bonus goods will be 4 times more expensive than regular goods to offset the economy.
Developers are not interested in selling regular goods for bonus OKs.
Users are not interested in buying bonus goods for the usual OKs.
At the same time, it makes sense if "restrictBonus" = false to write off bonus OKs in the first place. This approach will allow you to use both bonus and usual OKs to the maximum without prejudice to the interests of either users or developers.

Answer 2

How to explain to the user that the Oki he received for the promotion is not Oki?)
Have you already changed something in the methods?
For small purchases, the platform payment window began to rise after clicking on an item in the bank, which misleads the user.
He thinks it's proof of purchase. He changes his mind, refuses and closes the platform window, but the purchase has already been made ...