"...I didn't mean to imply that you were "double baptized."
Just as a side note. The Serbians routinely baptize all converts to Orthodoxy including Roman Catholics.
That is a matter of economy, a prerogative of the bishop. If he detremins that the Catechumen was not sprinkled but rather immersed, chances are they will go with chrismation. If there is any doubt whatsever, the individual will be baptized.