I have a 2021 Seat Leon FR Sport. It was leased in April. It seems to have developed a number of faults all connected to the infotainment and SOS function. The infotainment system often hangs on a 'please wait' screen for up to 30 minutes. No amount of resetting it or restarting the car fixes it but then magically it works again. This seems to happen roughly every one journey in 10. This means I can't control basic functions like the radio or heater. I also get a message - 'SOS Error: Emergency Call Workshop!' - with a warning triangle on the dash (this seems to be a common issue across the VW Group). This happens at similar regularity and is fixed by turning the car off and waiting a few minutes.

I've contacted both my local SEAT dealerships but they can't fit in for an investigation until October and even then, if the issue is present at that time, they may not be able to do anything.
What are my options with the leasing company or the next steps I should take as a £27k car without a radio or heater doesn't seem acceptable.