Consistency is key!

Could you please be consistent it is 2 of April, I am still waiting for you to deduct my phone bill, one month it on the first the next it is later. The moment I pay on the app you double charge me, because that is a disaster, could you please just be consistent. Being on Vodacom is a frustration I find hard to explain to people. It should be a debit order coming off same day every month. How hard can it be to deduct money on the same day of every month. PLEASE I cannot do this anymore.