Trouble with payment posting

I had a payment arrangement for 3/4. I paid 3/1. We were still disconnected. I received a receipt email from Xfinity thanking me for my payment and it’s posted to my bank account but chat agent keeps telling me I didn’t make the payment and will need to pay again.

Here are the details of your payment:

Account number:  Ending in [Edit: Personal Information]
Payment amount: [Edit: Personal Information]
Payment date:  03/01/2024

Card type:  MasterCard
Card number: [Edit: Personal Information]

Please note it may take up to 48 hours for your payment to process.

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you can clearly see I made the payment. This is absolutely unacceptable!!