WINDSCREEN CLAIM - PIRATE PART FITTED

After numerous phone calls to Iwyze and Glassfit, being transferred from one person to the next, I still have not received feedback on my complaint. This date back to Oct 2019, it is 4 Jan 2020. My windscreen was replaced by Iwyze and Glassfit with a pirate part and not the original Hyundai part. This lead to the defogger not working, which I took to Hynundai to check out and their report is as follows: Upon inspection of vehicle we found the vehicle was fitted with a non approved windscreen, auto defogger sensor is not on the windscreen and should be replaced with a genuine Hyundai glass. None of my sensors are going to work with a pirate part. No where did anyone notify me that they replacing it with a pirate part or that I agreed to any of it. The VIN number is used to order the windscreen, surely they suppose to get the windscreens with sensors from the agents???

I have been with them for years, never missed a payment, got no claim bonusses back, but this they can't sort out …. I feel de*****ed and once resolved, I will probably change insurance company. Don't they value me as a customer?