#2 - July 12, 2013, 1:44 p.m.
Rather than simply suggesting you submit a ticket, I think the best thing for you to do is to review the following articles: http://wiki.guildwars2.com/wiki/Explorer and http://wiki.guildwars2.com/wiki/Map_completion. Both of the articles have important info that may help you resolve this issue. If you still need help, you can submit a ticket to Support. (I believe that there still exists a “rounding up” factor that may indicate 100% when the account is at, say, 98.4% or 99.1%. We don’t know of any bug with this process, so when you have completed all the maps, you should definitely receive the rewards.)