does accidentally tapping on activating a E SIM Card on your phone will that cost anything?

well i did cancel this process 

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Is this a SIM with a new number, or an upgrade with the same number you are already using in an older phone?  When you get a new phone, AT&T usually charges an activation fee on the first bill, unless it’s waived.  That charge comes whether the phone is SIM is actually activated or not (it’s more of a SIM fee).

Hello @kimjaeyoung3, we hear you and let's get the information you need!

Thank you for letting us know that you have cancelled the process. For any further assistance, please reach back here.

Thank you for contacting AT&T Community & Forums,

Ken, AT&T Community Specialist

Thank you

Hello! The Sim card is the same number

If you had successfully activated the new SIM, your old SIM would have stopped working since you can’t have two active SIMs with the same number.  Does your old SIM still work?  Why wouldn’t you activate the new SIM?

I have already activated it I am not using the old one what I am talking about is the esim

Then what eSIM are you talking about?  If your activated the AT&T eSIM on your new phone and it’s working, then I don’t understand the original issue.  What SIM did you cancel?

Well I accidentally tapped on e Sim activation on the phone