deactivation of o2 prepaid pack by mistake

Dear Community,

I've accidentally terminated the product "o2 my Prepaid Data Pack L" tonight which costs 9.99 euros, which I still want to use. The reason behind terminating it was, i don’t speak german and the app only in german. I thought I’m discovering how to buy the offer once i finish but After I terminated the product, I found out that the credit I had no internet and i can’t even make a call. Is there a way I can restore my data pack I've had?

Thank you so much for your help.

Best

Edit by o2_Katja: Moved to our English Community