No Audio Verification option on cancelation page

Hi, I wanted to cancel my 50+50 GB LTE Data contract as it finished and is now on a month to month 50 GB basis for the same price, but when I goto the Telkom Cancelation page, I only get an Image verification option after filling in all my account details, no audio verification for blind users with Text to speech software. I emailed Telkom, but no luck with cancelation yet.