I called because the battery in my 2019 Subaru Out...

I called because the battery in my 2019 Subaru Outback with less than 1000 miles on it repeatedly dies. If I don't drive it for more than one day, the battery is dead, regardless of how much I drive or "charge" it. The representative who I talked with responded to this by saying that the batteries on these cars are small and that I need to drive it every day or else the battery will die. I then suggested that it could be an alternator issue and she responded by saying " I haven't seen more than one alternator issue with these cars during the last 5 years so I doubt it's that". Her tone was dismissive and when I asked if I could take it in regardless, her response was that they were booked for the next few weeks at least.

Regardless of the lack of customer service, how is this an acceptable response? Even if this is a factory issue, no brand new vehicle should come with an embedded problem like this. No one should have to worry about driving their vehicle over the weekend so that it starts Monday morning.