Something like this happens when there is not enough credit available for the extension. Did you not top up your credit on time?

i had enough credit for the extension, but it was reduced by the surf dayflat charges, which makes it insufficient for the extension

contact the prepaid chat tomorrow.

o2 Prepaid-Chat

Hello @evelyne2809 ,

welcome to the o2 Community .

That’s of course an unfortunate sequence of bookings, have you already contacted the chat as advised here, or should we take a look at things?

Kind regards, Sven

Hello @evelyne2809,

even if you haven't replied so far, I wanted to ask you about the current status!
If we can still support you or if questions arise - please contact us again here

Best regards
Daniela

Hi, I didn’t have time to look into the problem so I haven't contacted through Prepaid-Chat yet. Firstly, thank you very much for checking up on my status; after the second charge of surf day flat, I decided to top up my O2 credit and got another Data Package, I’m not charged with surf day flat anymore since then. However, I would still like to know the initial cause of why I was charged at the very first place when I had enough credit for extension, so that I can avoid this problem for my next due date. 

Edit: o2_Maren 13.09.2024 / full quote removed

Hello @evelyne2809,

Dayflat is only charged when no data package is active. This can cause your credit to run out before you can book the package. It's good that you've activated automatic refill so that your package is always booked automatically when you have enough credit. Glad you've found a solution! If you have any further problems, we'll be happy to look into them.

Kind regards, Maren