Important software updates not findable!

Hello together, I have the following problem: I had the last weeks increased the problem with failures of my assistance systems and above all drive loss with subsequent illumination of the engine control light. Appointment with the car dealer agreed – error memory read out – nothing out. Statement of the dealer: I have 3 software updates open, which could fix the problem and should do this first. Because for data protection reasons the car dealer does not have the right to do so. I don’t find these (OTC) software updates either in the infotainment system or in my CUPRA CONNECT app. I’m the main user, I set the CONNECT account and my settings to “Send Location” – In the settings of “Software Information” – “Updates” nothing pops up either. Unfortunately, I really don’t know how to install these important updates anymore. Maybe one of you has advice and can help me here, because I still have assistance failures and drive loss. So car driving is not fun Unfortunately, thank you already in advance for any help! Greetings, RAZZU