Get/Update payment estimate

This endpoint is required to get the current estimate on the payment and update the current estimate.
Please note! Calling this estimate before expiration_estimate_date will return the current estimate, it won’t be updated.

:id - payment ID, for which you want to get the estimate

Response:
id - payment ID
token_id - id of api key used to create this payment (please discard this parameter)
pay_amount - payment estimate, the exact amount the user will have to send to complete the payment
expiration_estimate_date - expiration date of this estimate