Incomplete payment details prevent exact calculation

Steps:

• Total issued capital: 200,000 shares × $2 =$400,000 nominal value.
• 90% of shareholders (180,000 shares) paid full value immediately upon formation on 1 April 2018, contributing $360,000.
• Remaining 10% (20,000 shares) payment details unclear; 2% payment referenced for April 2020 (after query date), and 1,000 shares payment ambiguous.
• No specific calls or payments confirmed between April 2018 and June 2019 beyond initial 90%. Not enough information.

Final answer: Not enough information.