only need to intercept the sms of all providers for Germany without a clone with contract numbers and a more effective method with any numbers
first contact pm

cost a bit

please write on the case

This is almost impossible.
Because for this what you are looking for you need someone with SS7 Access .
Or Insider at every Mobileprovider in Germany.
What cybercriminals in Germany and other EU Countries are doing is cloning Sim-card through insider and make instant cashout.
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its not impossible, its done always here