Telkom disappoint me again

Every 1st of every month I get 60gig data on my router. The morning of 1 May 19gig was used. I unplug my router during the night and when I woke up I saw 19gig was used. I emailed the support team so I hope that telkom will give my 19gig data back. I am paying every month and this is how telkom treat their customers. So please don't blame the lockdown for the poor service. Thank you