Hello @Umut Eryigit , thanks for your request. 
Are the invoices for the same customer number? Have you got the invoices in front of you? Please look on the second page, there you will find the billing details. Are they still for the same number and period? 

kindly regards 
Michael

In my Mein O2 application i see only 25.28 Euro invoice, but in my bank account I see both of them. I think you did a mistake and send the 41.28 extra invoice. Last two months you have made a mistake and Got extra 15 Euros  for an application, I think this is a mistake related to this. 

Edit o2_Lars: Please never publish any personal information in a public forum - 26.01.2023 - 10:25

You have 2 contracts with 2 different costumer numbers. 

Please check your E-Mails from o2. 

I dont have a Kundennummer XXXXXXXXXX in my O2 application, i have an email abiut 41,28 invoice, but when i push the button i see the invoice of 25.28 Euro invoice. My Kundennummer is XXXXXXXXXX. 

Edit o2_Lars: Please never publish any personal information in a public forum - 26.01.2023 - 10:25

Hi @Umut Eryigit ,
thanks for your response. Please do not write any personal data in any forum. 
I will have a look at the invoices for you, so i have written a personal message. Please answer to this and provide me with the neccessary informations. 

LG
Michael

Hi @Umut Eryigit i received your personal message and allready answered it. 
Were i able to solve your request? Is everything fine?

best reagards
Michael