In Account Maintenance: Receivables, we created a debt from Perpetual of Distributions Receivable.
To enter a payment received from a debtor, we enter a Journal to DEBIT the bank (adding the amount received) and CREDIT the Accounts Receivable account (in this case, Distributions Receivable).

In Receivables: Accounting for GST, we created a receivable of rent from a tenant.
That receivable included GST, however since the GST had already been accounted for when entering the Receivable, the receipt of payment would involve a Debit of $2750 to the Bank and a Credit of $2750 to Accounts Receivable.

Follow these examples for all entries of Receipts from debtors.