Poor communication, chasing my tail trying to get the right people to assist me

I always had a revolving facility available on my app. In December I settled it and the notification came up saying that it will be settled but will not be removed from my profile so I can always use it again. Well it disappeared and I would like to use it again. I tried to reapply for it and it declined me but offered a personal loan instead. However, under "offers for you" it was offering me a revolving loan, so I clicked on it. I was playing with values to see what the monthly repayments would be. I wanted to go back to adjust to a lower value but it did not allow me. I closed the app to try restart the process. Now there was nothing under "my offers"so I tried to apply the normal way for my Revolving loan... again... it declined me, only offering a personal loan. I have been trying to get FNB to "call me back" they finally did a week later but I missed the call. I tried calling the number this morning and people keep transferring me to different departments, I eventually end up where the call began to enter my ID number yet again, I hung up at this point because I have gone through this twice already. Please can someone from FNB call me back and deal with my issue and not send me to each and every department. I have never missed a payment in my life, I earn more now than before when I used to have the revolving loan and I have been an FNB customer my whole life so I do not see why I am suddenly being declined. Also, the facility should have never been removed from my app to begin with. Please can this be attended to and Ill gladly change review rating.