Frustrated vodacom customer

I took a data contract from Vodacom on 28 March 2024 with the agreement that they will debit my account on the last day of each month. Fast forward to a week later and they have disabled my data sim because my account is in arrears. The money for the first month was deducted from my account on 2 April 2024. When i call them they say it takes 3 working days for them to confirm that the money was paid into their account. In the mean time i should be offline whilst they wait to confirm. This is appalling to say the least. The data line i got was supposed to be 50 Mbps and i hardly got more than 10 Mbps when it worked for the few days i used. This is my first vodacom contract, and will surely be the last. I thought vodacom was a better service provider than i am experiencing from them. I talked to a Natasha from customer service centre who promised to call back but never did. When i try to call them, their 082135 number keeps taking me to a Toby bot that is very useless to say the least. The number that is on the invoice they sent me today is no longer in use when i try calling it. I am losing business because i use the internet for work. This is not acceptable vodacom.