What if I have keyed in a wrong email address? July 07, 2022 08:01 Updated Please make sure you have a valid email address set in your account details. Related articles How can I contact McDonald’s in case there is an issue with my delivery (for example: Missing items, order not delivered, wrong items etc.)? Can I change my email address under my profile? I am having issues registering. Why is this so? Can I use the new McDonald’s® App in other countries? What does the standard McDonald’s® party package include?