[pauke]

That's not true for over two years. Capped by EU at 19 eurocents a minute. And 70 dollars is pretty expensive, I think you should check if there aren't better deals available (I assume it's CZ?)

https://ec.europa.eu/commission/presscorner/detail/en/MEMO_1...

[jbverschoor]

Within the EU, you will not pay more for being in a different country.

Data and voice may not cost more when roaming

[emteycz]

You're right it's cheaper than I said. I didn't check for a few years.