Scandalous 25% blanket annual increase on premiums.

I have been with Dialdirect since 2010 and have never made a claim. In 2018 I added a new item to the policy. Previously my annual increases had pretty-much tracked inflation. I only recently realized that with the 'new' policy (due to the additional item) my premiums have been increased by 25% per year. Sure, I'm an idiot for not keeping on top of my finances but I was dealing with some traumatic things at the time and then the pandemic upended everything. Also, they do not list the annual increase as a percentage (just a lump sum) and they also do not list the individual items you have insured which makes it difficult to know where the value lies. They say you can review the increase but unless they give you more detailed info, the only rationale would be "it costs too much." I contacted them and suggested that 1). the 25% increase had to be an error because otherwise 2). they have a deliberate policy of price gouging and 3). I assumed I would get a refund on the error. They were very clear that there had been no error. So... don't be fooled by the happy, "chingy" world that that their adverts suggest - the only reason for their existence is to extract as much money out of you as they possibly can. You have been warned.