Bad service every month

Eish I know I made payment arrangement for this month but every month is the same issue with rain connection is always lost every month , and I end up loosing about 2 to 3 hours of work every month. Due to Rain lost network I work from home connection is lost today, the connection just went off and I end up talking to a guy who was telling me that my account is off due to I didn’t pay but I made payment arrangement and if you were to switch off my connection or my account why didn’t you do it on the 25th as my billing cycle is on the 25th. Could you guys please assist and solve the lost connection on my Rain subscription