If you simply must have extra magazines right now, sell the S&W and use your P365XL or Hellcat. Complaining about the tone of a Customer Service response is not going to change anything.
The tone of S&W customer service has been erratic - anything from perfect to insulting - for as long as I can remember, and I can remember a L O N G time.

Hey, be happy that you’ve got other guns to play around with until you can get enough Shield mags to keep you happy. The 365/365XL is a great little gun.
