Over promise, Under Deliver... Pathetic customer service

Every month for the last 5 months FNB is not paying me my mortgage protection plan payout on time(25th of the month). I have to send a min of 6 emails and make upto 8 calls in order to get paid out. Last month I was paid 16 days later. This month I did not get paid again. What is happening FNB? Where is your customer service that you promise to deliver? Please can you rectify this and pay me ASAP.