Cindy Mikeworth wrote:

I have setup several recurring reminders with reminder alarms,
however when I 'complete' one of these tasks, the reminder for all
future occurances is removed.

If the task is complete, then it is over and you have no need of further
reminders. Instead, if the task is ongoing, dismiss the reminder and a new
one should be generated for the next recurrence.
--
Brian Tillman