I have had the same thing happen, I was also credited my fees. Ebay did remove this on the summary page. I would contact them and tell them what is going on, they are very helpful with this and I would think they would remove this for you.
I have had many attempts for Nigeria sales, these have all been scams so I now put in my major auctions I will not ship to Nigeria and do not have any problems with this, also watch for Indonesia cuz I just had that problem about 2 weeks ago.
Hope this helps.