Fnb keeping me in the dark

I purchased a solar system via the fnb app ebucks rewards. When I called to follow up I was transferred from pillar to post with each person giving me incorrect information. The departments are working in silos and this is extremely frustrating because I am a FNB client and all of FNB should be able to assist in resolving my problem or at least getting me to the correct person. At this point I am my own service consultant. Anyways, last week the appointed FNB supplier calls telling me FNB has issues and I should cancel the order and get a refund he would call to sort out the solar system purchase...*****! Since then no word. I call today and apparently there is no inbound call service for the ebucks shop. Stuck in a hard place with my money sitting somewhere making more money for FNB