Who knows?
The 'wave' of popularity has passed for Tornado.
When initially released amongst large demand, the printing of the special cards for refill purposes is a 'no brainer'. People want/need them and need them now!!
However, after the initial order, replacements orders for the refills from PM will certainly 'slow'.
Thus, send them an email directly with your question.
They'll, most likely, answer quicker from customer service vs. responding in this forum.