That's not a rifle fault, it's a lack of familiarity with the rifle. Very unfortunate though, and a reason that the rifle didn't work for you personally. It's not an uncommon issue mind, in fact I believe aftermarket safeties are available to change them to a more common configuration.
I use mine most months at the range, or just handle it at home. The function of a dangerous game rifle has to be completely instinctive.
Edit... I've just read more comments after yours - looks like it's already been covered, sorry.