Sometimes you might have trouble with DGCustomerFirst Com. This could link to various factors. Before you contact the customer care desk, always check on your side to exhaust anything that could be leading to the problem.
Check your internet connection and the type of browser you are using.
Always ensure that you have met the required criteria as you might be attempting to survey in a different location other than the one required.
Also, check the expiration date on your receipt, as it can also prevent you from proceeding.
The codes on the receipt must also be accurate when you enter them, as the system rejects false codes.
If this is right on your side and the problem persists, get in touch with the customer care support. The contacts and other social media platforms are available for you.