I cannot seem to update payment for YouTube TV. I have lost connection.

Hi umarra,

Seems you are wanting to update the payment method you use for Apple Pay so you can pay for the subscription.

See if this Apple Support article helps:

Change or remove the payment cards that you use with Apple Pay - Apple Support

Eg: says how to:

Update your Apple Pay card number and expiration date

With Apple Pay, your payment card has a unique Device Account Number used to process payments and an expiration date associated with that Device Account Number.

If your card expires or you otherwise get a new card:

✽ The card number and expiration date linked to the Device Account Number should be updated automatically. 

✽ If your card issuer doesn’t support these updates, you might need to remove the card and add it again.

If more support is needed:

Here's a link to the Apple Pay Support Website

Apple Pay - Official Apple Support

Hope this helps :-)