Hello i have Ordered an IPhone 13 Pro Max 128 and was told by O2 email to send via Überweisung guthaben cause i did not had at that time a Mobile Contract and i sent them and every thing was nice and they confirmed it and my mobile is now with me but i was told in the email that this Guthaben or Deposit won't make the Mobile more expensive and will be deduced from my mobile installments but i can not see this in my Monthly receipt so where did my Money Go ,
 have searched all my Receipts to see if it was transferred to my Apple watch installments or mobile contract but cannot find my Money and i will have to pay all the installments + the deposit 
by deposit i mean “guthaben”
=D  thanks in advance 

not “Die Einmalige Kosten”

Edit by o2_Katja: Moved to our english community, screenshot anonymized