Discrepancy in DSL signed contract and the email received contract

Hello Flo,
Thank you for the response.
Please see the screen shot. (The connection will be established from the 12th-Aug-2019)

Hi Flo,
I went to the O2 coustomer care shop in Munich and talked with the customer care representative and they told everthing in order and there may be something wrong with the email contract. They even give the O2 leaflet with all details (Same as the information as in the O2 website. Please see the scree shot (50Mbits DSL highlighted in greeen). So ideally I should have the first billing (19.99 monthly charges + 1.99 Router rent + 49.99 Activation charges = 71.97 Euro) instead of 129.97 Euro under Summe einmalige Kosten. Any insights from your side will be helpful.

Hi Flo,
Thank you for the response.
My four-digit identification code : xxxxxx
personal customer number : xxxxxx

Edit o2_Flo: personal data anonymized.

Dear Flo,
I went back to the shop and explained all the details and they told me that they forgot to put the discount code. After enabling the discount code, they told me that Einmaliger Anschulßpreis DSL 69,99 Euro will be credited back and the monthly rentals will be 19,99 Euro. Very recently I received an email from O2 stating that 49,99 Euro will be recredited to the account. From the O2 shop, they give me a File number for further follow up: 20587511.
Could you please check what kind of discount was added to my account. I cannot see any of these information in my O2 online account. Also if 69,99 euro is going to be re-credited, why in the mail from O2, it says only 49,99 euro. Thank you for your time and efforts.
Roz