Why Is My Wife Banned From DP???

My wife has just been banned from DP. The reason given was that she has multiple accounts.

I'm just wondering if the fact that we both share the same IP address (but not computer), has anything to do with this?

She asked a mod when joining if a shared IP address would cause problems and the mod replied that accounts are not banned simply because of duplicate IP addresses.

This leads me to ask, if duplicate IP wasn't the reason for the ban, then what was? She assures me she has only registered in DP once, and I only have one account, so why the ban?

As my luck usually runs I'm probably next to get banned, even though I've done nothing to my knowledge to justify such a ban.

Let me make this clear to any mods reading... I have one account which I access from the same home network as my wife.

Actually, if you are a mod please reply or PM me, as I really want to find out why my wife was banned and if I'm going to be next.