Clarification Needed: Using Claude 1 or Claude 3 Haiku?

Hi I got message from Athropic, kinda strange. They say I'm using Claude 1. Can you please look into this and see that It is actually Claude 3 Haiku that we are using when selecting to the Haiku model in Claygent with own key. Edit. Actually just check my Anthropic Account and indeed I have been using claude-3-haiku so actually not sure now what the email is about.