Credit card payment change for taxes owed

For federal tax due?  If you need to change a payment you scheduled:

 

TO CANCEL A TAX PAYMENT YOU SCHEDULED

 

If your return was accepted, you cannot change your payment method  or payment date.  The only thing you can do is cancel the payment and then pay by a different method on your own.

 

• Call IRS e-file Payment Services 24/7 at 1-888-353-4537 to ask about or cancel your payment, but please wait 7 to 10 days after your return was accepted before calling.
• Cancellation requests must be received no later than 11:59 p.m. ET two business days prior to the scheduled payment date.

I need to change the credit card I entered -from my MC to my Visa

I have not filed--I am in turbo tax and want to change my credit card from MC to Visa - why is this hard??