There has been some postal strikes here which would cause quite a backliad. Parcels normally take longer too. I have posted letter there and they have got there fine.
I would give iit a few mor days, if anything I would say the delay is more liekly this end. My post has been terriblr lately.
It may also depend if you're posting to a resort area, in what is high season. I once had post sent to me at the beginning of June in Gumbet, and it didn't arrive at its destination until nearly the end of August.