Terrible service!!!! Should I say, non-existent

I have been dealing with Absa Bank for 27 years. I have had issues with the insurance since October 2019 of last year. Apparently the policy schedule changed without my knowledge, in August 2019. Absa have not made any attempt to ensure my contact details or address correct. I have made 5 attempts in updating my email address myself and requesting statements, as I have not received any statements from 2016 to present. The insurance policy all of a sudden, does not cover any damages caused by power surges or spikes. Apparently it is now the consumers fault that Eskom has load shedding and faults at un-predicted times. I've been trying to claim an Evaporating water cooler, which the consultants does not even know -what it is or how it works. I live in the Northern Cape and experience temperature of +/- 40 C on a daily basis. Thanks to Absa my 27 years of support means nothing.