[Square] What are the minimum and maximum amount limitations on a single payment (for each payment currency)?

The minimum payment amount is $1.
The Square payment method will be hidden from the checkout screen when an order’s total amount is lower than $1.

See also

I have got an answer from the Square’s support:

The limit for a US account is $50,000 USD, the limit for a CA account is $50,000 CAD.

I to get the same issue with minimum amount.
amount_money.amount must be greater than 100.

Can you please help me with this.

Of course. Buy a license for my extension first, and then I will help you.