How to make payment using unitpay?

Want to make payment through unitpay understand that we need to send data via get to the site of the payment system and select the payment method. Do not understand how to get the answer from unitpay.
June 5th 19 at 21:30
2 answers
June 5th 19 at 21:32
They have a detailed API description
Issues not related to the purely technical implementation is to ask their support.
June 5th 19 at 21:34
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