For Germany it says 0.07 USD prepaid for 1.39 MB which is 50 USD for 1 GB. Telekom offers 2 GB for 9.95 EUR prepaid which yields 0.0082 USD and is an order of magnitude lower than the quoted number. And this is literally the first offering I looked at, the second provider I looked at offers 12 GB for 15.99 EUR which brings the number down to 0.0022 EUR.
I would take those numbers with a large grain of salt at the very least.
I would take those numbers with a large grain of salt at the very least.