Rain refuses to cancel my subscription

On the 02/02/2022 I contacted Rain to cancel my subscription, I asked the consultant to cancel it because I was struggling with connection. She said I should have informed them, they could have assisted me with that. She advised if she could transfer me to someone who can assist with connection i declined on the spot and informed her that I need it cancel. She advised that my subscription will be canceled with immediate effect and money will be deducted on 15th February 2022. I asked her to send me an email or sms to confirm cancelation. She said it will be updated on the system. This morning I got a call from another lady informing me that my subscription cannot be canceled. It will be canceled at the end of the month and they will deduct payment for February and March. So why should I be forced to pay for something I don't want. I don't understand why they now want to tell me that their month end on the 30 if I had to pay pro rata when I switched my payment date to the 15.