On Tuesday, January 4, I applied for a Galaxy Book laptop and an online data plan and made a payment of 13 euros. 
However, the next day, January 5th, less than 24 hours later, I regretted it and decided to cancel the order. I contacted the English support at o2 and the attendant said that it was possible to cancel and the order would no longer be sent. Later that same day I received an email that my order had been shipped, even after the cancellation request.
On Thursday, January 6, in the morning, an attempt was made to deliver but I was not at home, then left a notification to withdraw the order at the given location. In the afternoon, I decided to call O2 English service again and reiterate the cancellation, because I no longer want the service or product. The attendant once again confirmed the cancellation, said she would send me an email with the document to be able to send the laptop back. I have been waiting for this e-mail until now, but I have NEVER received a cancellation confirmation since the first contact on the 5th or this e-mail so that I can send the product back.
I request the immediate cancellation of this order, the service and the contract and that the O2 attendants stop lying on each call.

Translated with www.DeepL.com/Translator (free version)

Edit by o2_Katja: Moved to our english community