Help me fix this question please. The last expert who answered this. Got the answer wrong;

Exercise 7.5 Recording sales made with bank credit cards and American Express, with 8 percent sales tax.

Feb. 2: Sold merchandise for cash totaling $4,200 to customers using bank credit cards. Record the 15 percent discount on credit card sales at time of sale.

Feb 15: Sold merchandise totaling $4,700 to customers using American Express.

Feb 20: Received amount due from American Express, less their 16 percent discount, for sales made by customers using American Express on February 15.

Answer is not complete. No Date General Journal Debit Credit Accounts receivable/American Express X 1 Feb 02, 2019 3,570.00 Credit card expense 630.00 Sales discounts 4,200.00 2 Feb 15, 2019 Accounts receivable/American Express 4,700.00 Sales 4,700.00 3,948.00 3 Feb 20, 2019 Cash Credit card expense 752.00 4,700.00 Accounts receivable/American Express