Contacts are not sorted alphabetically
In Android, Contacts+ automatically prioritizes the people you interact with the most so you can easily find them.
However, you can always go back to the regular alphabetical sort from the Contacts settings screen.
Navigate to Contacts+ settings >> Contacts >> Sort contacts by (in the Contacts tab section). The available sort methods are ABC by first name and ABC by the last name.
In iOS, tap on account icon >> Settings >> Under Contacts >> "Sort by" where you can change the order.
Note: Sorts out the contacts based on name, created date of contact and organization
In Contacts+ for Web, navigate to the 3 dots on the top left corner near to tag icon >> Sort By.
In Contacts+ for Mac, click on the down arrow displayed at the bottom bar >> Sort By