********** Rain unlimited data network sim

Why is it always the same with cellphone network providers and their ***** service? I got a once off sim with these people for R479 which they got as per agreement, a month of no use in April (thanks to their ****py network which works in certain areas only) and today I get an sms from the bank of funds deducted. Kante what does once off, no month to month contract mean? Going into their app to cancel says it takes 30 days and they still charge you again the same amount. Rain unlimited data network sim cards you are a ***** and you have been getting away with it. Highly not recommended, they need to be investigated