Rain Debit Order and Support

I'm usually not one to make a fuss but I am so GATVOL with rain. I've set my debit account to the 1st of every month and even my profile states that but every month I get a message saying my account will be debited earlier than expected or on the 25th. I've contacted rain support on several occasions asking them to sort this mess out but it just doesn't seem to happen. My cellphone number is linked to their system so when i call, the systems says i must make the payment first to get assistance.I don't understand why I must be frustrated every month over wifi connection, and today i cant even log on to my profile. If i have to wait another 4 days until i pay then lets go our separate ways Rain, because this relationship is one sided. I will return my two devices to your Bryanston office and get my peace back.