DOUBLE Billing,

Hi, I've been a Rain Customer for over 2 years paying for 2 routers (4g and 5g) for different locations.. I recently realized that I get double billed some times. Payment run is on the 25th of every month, but then there's another one on the 1st of the month... I only noticed these when I did a Part payment on a bill of R1028, I paid R514 to stay connected ..then a week later (today) when I logged in to settle the known overdue amount of R514 payment I see the bill is now at R1542.. Which is shocking as the bill should be R514.. Getting through to Rain on calls is impossible.. I need this rectified as I cannot pay so much money for 1 month. Now I'm disconnected 😞.