No, if you have terminated your Bowtie VHIS policy, any unused Bowtie Cash and health service vouchers will become invalid.
However, if you change your Bowtie VHIS plan level through the Bowtie Online Platform, you can retain any unused BowtieCash and health service vouchers from your original plan.
Related reading: Can I change the deductible option for my Bowtie Pink plan?