CJW

Hi We have a 2020 Karoq and on the whole love it, but for a while the Infotainment system randomly reboots itself or crashes where we then have to reboot it. Picked up an OBD device to use on another car so thought I'd take a look at the Karoq to see if anything would be recorded for that issue and anything else. To my surprise it pulled up 22 issues, some of the serious but nothing specifically about the Infotainment, however it was only a couple of days before it went in for its scheduled service, covered under the service plan we picked up when we bought it. Now I will admit when I dropped it off for its service I couldn't stop so didn't mention any of the issues, assuming they'd plug in an OBD too and see everything. When I picked it up nothing was mentioned about any problems found so again assumed it would have all been reset and resolved. I've just plugged the OBD back in to have a nose and to my surprise there are still lots of errors, some deemed serious, glow plug circuit issues etc. So my question is, is it right that a scheduled service comes with the pointless video of the mechanic saying they've checked the car...but not actually checking or investigating codes via an OBD which surely should be part of any service? Or am I being harsh? It almost feels like a service plan is just cash for a little as possible and nothing more than a visual check. Thanks in advance for any thoughts/advice.