I seem to remember adjectives like "Orwellian" being used on the thread about coupon reconciliation...what would one call this, then? I'm afraid I would have to call it insulting, something akin to tagging of animals in the wild to track migration patterns.
For good service, honestly, a thank you will do just fine. For inept or bad service, please point it out to the company and trust me, they will point it out to me.