How do I update my expiry date on my credit card?

HelpingSaveHumanity

So almost every other company emailed me over a month ago to update my new expiry date & CVV & of course NCH didn't & now I can't work because I have no clue how to update it (where) & even if I can update it, how do I push the payment through?

If you know, please LMK.

This is for the charge every 3 months.

I emailed them, but who knows when they will get back to me.

-0-

I had to repurchase as if I was new, but all sorted.

Thanks