Rentoza bullying its customers

Rentoza tried to debit my acount on the 24th of October 2022 . They then blocked my phones and said it is due to non payment and i should pay a R300 reconnection fee . I have a contact in my possession and rentoza has it where it clearly states that my payment date is on the 25th of every month. They are still refusing to reconect my phone . They expect me to pay R300 for their admission error. I am a loyal customer and have never missed any payment. This is pure bullying from rentoza. I have sent them numerous emails and no response.