For me it would be a dealer issue, klaudijus.kunsteinas: too complex for my limited technical knowledge!
I acknowledge your frustration with the fault, but your post interests me because it opens up an area of EQA ownership I hadn't thought about too much: repairing an accident damaged EQA.
Your experience may be an indicator of the general sensitivity of the EQA (and possibly EVs generally) to accident damage, due to the relatively fragile nature of the complex high voltage electrical system.
Complexity is likely to narrow the field of repairers capable of rectifying such damage and - unlike ICE vehicles - the repair process may necessitate the involvement of various specialists to effect the repair: panel repairers to repair the panel/structural damage and EV-savvy mechanics to rectify damage to, in particular, high voltage componentry. If this sort of scenario is correct, it will limit the field of repairers with the knowledge and expertise to repair damaged EVs. The narrow field will very likely limit competition with the result that we'll pay more for repairs to our accident-damaged EVs - either directly, or through higher insurance premiums.
I was surprised that my first year's comprehensive insurance cover for my EQA wasn't much higher than a comparable (in value) ICE vehicle. Does the insurance industry fully appreciate the risks associated with insuring EVs - or have I misunderstood the situation?