Worst service I have ever experienced

I have been trying for more than a week to update my policy details with Discovery insure, through UCovered. I have sent multiple emails containing the corrected information and received multiple notifications that the changes have been implemented yet the my policy schedule still contains multiple errors. I have tried logging a complaint with UCovered, but I get put through to the relevant department multiple times and then just kept on hold. This is easily the worst service I have ever experienced.