curl --location --request POST 'https://api.freedompay.kz/api/reg2nonreg' \
--form 'pg_merchant_id=""' \
--form 'pg_order_id="550e8400-e29b-41d4-a716-446655440000"' \
--form 'pg_amount=""' \
--form 'pg_description=""' \
--form 'pg_order_time_limit=""' \
--form 'pg_payment_route="frame"' \
--form 'pg_user_id=""' \
--form 'pg_user_email=""' \
--form 'pg_back_link="https://site.com/back"' \
--form 'pg_post_link="https://site.com/post"' \
--form 'pg_salt=""' \
--form 'pg_sig=""'
<?xml version="1.0" encoding="UTF-8"?>
<root>
<pg_status>string</pg_status>
<pg_payment_id>0</pg_payment_id>
<pg_merchant_id>0</pg_merchant_id>
<pg_redirect_url>string</pg_redirect_url>
<pg_salt>string</pg_salt>
<pg_sig>string</pg_sig>
</root>