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Invalid payment instrument data

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New Poster

Invalid payment instrument data

When I try to even enter a credit card to may a payment I receive "Invalid payment instrument data" I have tried different browsers (firefox and Chrome)

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New Poster

Re: Invalid payment instrument data

I am getting the same message as well.

Tried Edge/Chrome and Safari browsers

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New Poster

Re: Invalid payment instrument data

I am getting the same response as well and haven't been able to resolve.  

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Official Employee

Re: Invalid payment instrument data

Hi essex414. I can assist with troubleshooting your payment submission issue. Do you have access to / or have you tried submitting the payment via the Xfinity My Account mobile app? 


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Official Employee

Re: Invalid payment instrument data

Hi @Siege13 and @eaclock! Thanks for letting us know you're also getting the same error message when trying to update your payment information. I wanted to confirm if this only affecting Xfinity Mobile customers or if you're trying to update the card on file for your residential services? 

Do you have any success if trying to use these options: 


I am an Official Comcast Employee.
Official Employees are from multiple teams within Comcast: CARE, Product, Leadership. We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!