You manage the Accounts Receivable Department of a merchandising business. Your billing clerk sent a bill for $2 to a customer who had charged $100 in goods (including sales tax) with terms of 2/10,...

You manage the Accounts Receivable Department of a merchandising business. Your billing clerk sent a bill for $2 to a customer who had charged $100 in goods (including sales tax) with terms of 2/10, n/20. The customer called and indicated his displeasure; he can’t understand an error like this since he paid on time. Explain to your billing clerk why Accounts Receivable is credited for $100 and not $98. How was permission given to the customer to send less than the full amount?