Have you tried Purchase Rewards in Online Banking?

Purchase Rewards, available in Online Banking, lets you turn your everyday purchases into cash. Simply use your debit card and you'll get cash back reward offers at your favorite shops, restaurants and more.
Activate a Purchase Reward offer with the click of your mouse. Shop online or in stores, or dine at your chosen Purchase Reward vendor, then pay with your Resource® Plus debit card. You'll receive cash back, deposited right into your
1st Source account, by the end of the following month. It's electronic and automatic. 
You can track your participation and earnings on the Purchase Rewards summary page within Online Banking. Purchase Rewards are based on how you currently shop, so the offers you receive are relevant to you. The more you use your Resource Plus debit card, the more offers you’ll receive! There is no obligation and there are no limits to the cash back you can earn! 
Timing of deposit may vary depending on merchant and/or offer. Most offers limited to one-time use. Certain restrictions apply. You can opt out at any time by clicking the “Stop receiving all offers” link on the Purchase Rewards summary page that is within 1st Source Online Banking.
The offers are subject to the terms of the Purchase Rewards Program, which may be modified at any time.