FNB service is poor than our worst performing municipality,play far from that bank

On the 4th of June 2020 I lodged a complaint of bad service at fnb through hello Peter and their senior consultant was so quick to call me and ask the details of the matter, after all of the explanation she promised to assign someone who was supposed to contact me the following day on 5th june but so far I am still waiting for that call. Yesterday I did send them email but still they did not reply ,the senior consultant was smooth talking by even assuring me that my problem will be resolved within days but now it's 5 days since they made their call. I am so surprised because they keep on sending me sms demanding my documents to reapply and start the process from the beginning