I was automatically banned five minutes after purchasing—not from Wardogs, but from their own site; I didn't understand the reason, so I opened a support ticket. I'll post updates.
Update 1: Two hours after I opened a ticket, the support team wrote: "Hello, one application on your PC caused this issue—perhaps an antivirus. Please be patient; an admin needs to take a look at this." However, I do not have any antivirus software on my computer, and even Windows Defender is turned off. Twelve hours have passed, the issue remains unresolved, and I am still waiting for a response.
Update 2 : The admin got back to me; the issue was caused by a program installed on my computer. The error has been fixed, and an extra day of access was added. I’ve used the product, and I can honestly say it’s absolutely fantastic. I’ve tried products from three different providers on epvp before, but this one is definitely the easiest to use, offers the most options, and is by far the most enjoyable.