“Finish your payment setup”???

I recently set up a new iPad with Apple care+. I received an email that says “thank you for purchasing apple care+. Please keep this proof of coverage…” Etc.

Then it gives the product, the hardware serial number, the agreement number etc. It says “your AppleCare plus coverage is now active and will automatically continue month to month as long as you continue to make monthly payments…“

So my question is, why have I now received an email to “finish your payment set up” for apple care+ ???

It looks suspicious and I’m not sure I want to continue or click on anything.

Thank you for your input.