curl --location --request POST 'https://api.freedompay.kz/g2g/balance_status' \
--form 'pg_merchant_id=""' \
--form 'pg_currency=""' \
--form 'pg_salt=""' \
--form 'pg_sig=""'
<?xml version="1.0" encoding="utf-8"?>
<response>
<pg_balance>150000.50</pg_balance>
<pg_status>ok</pg_status>
<pg_currency>KZT</pg_currency>
<pg_salt>some random string</pg_salt>
<pg_sig>signature-abc123</pg_sig>
</response>