Panding monthly payment

I’m having a problem with rain specially when it’s comes to payment deduction they don’t deduct in time and they will disconnect your connection,date is there but they don’t when you call them they don’t answer when you request a call back they don’t call back,like now they haven’t deducted their money I’m worried they might disconnect my router I tried paying manually but it’s not working they must just give their account number then will do it on our own this is very stressful