Ann: Quarterly Activities and Cashflow Report, page-90

SYT did give a reason for the increase in R&D in the Q3 quarterly report,

"Total net cash outflows from operating activities were A$1.819 million, up 22% from the previous quarter. This increase is primarily resulting from the late March 2019 payments and a one-time charge associated with an increase in R&D expenditure to integrate the acquired mobile commerce platform with the Company’s Connected Services Platform and to validate the carrier-grade, launch readiness of the enhanced platform for its first customer, Mobifone."