First of all,

Did you bring the bicycles with you - I mean the same flight- or did you ship them seperateley?

In reguler circumstances, for the second case, if you have sent them seperately, the shipping company should have given enough information to clarify your issue. Otherwise, if they have processed as a commercial delivery, then you might register it on you passport/ and may be able to cycle to anywhere you wish...

But it seems that there is a misunderstanding or a mistake, because in that way of shipments, there must be a local recipent/receiver address... but by all means even by the customs process the transit goods shall not be taxed etc...