How do I talk to a person about my account

I can't renew or re activate my 365 business standard account the reactivate is grayed out

I purchased two subscriptions of Office home and business 2019 last January 22, 2021. One of the orders 8241074872 I have a copy of. I need a copy of the email Microsoft sent me for the other order I paid $249.99. I need the product key.

Contact Microsoft Store Support via phone.

https://support.microsoft.com/en-us/account-billing/contact-microsoft-store-support-4f615f2a-6bbd-fd69-6695-ae213d63eef0 

You will be sent to the Virtual Agent. Let the VA try to help you a few times, selecting "Didn't help" if the suggestion didn't help. You should then tell the VA, probably several times, that you want to speak to an agent. Some have reported successful results with Store Support; Others haven't.

Don

I purchased two subscriptions of Office home and business 2019 last January 22, 2021. One of the orders 8241074872 I have a copy of. I need a copy of the email Microsoft sent me for the other order I paid $249.99. I need the product key.

You're asking a totally different question. To change your credit card, sign into your account, click Payment & Billing, then Payment Options. You should scroll down a little to see Payment Method. There is where you can add a new card & remove the old one.

How do I change billing information on my account. The credit card I used when I set up the account has been hacked and I am no longer using that ccard.