Twenty-First Century corporations either don't offer any public access at all a la FAANG, or build a wall of useless people to interact with the public, to mask the reality that they are just like FAANG.
Don't include Amazon - they have empowered customer support who solve your problems. Which is why they have loyalty despite devolving into an eBay-like dropshipper marketplace.
Apple, Google, Facebook - yes, don't expect help if you do business with them and don't have a million Twitter followers to make a stink...