Erik Petra

I've been with Greentel for many years, and my experience has always been great. From day one, when I realized I can't wait for my SIM card to be delivered, I called them and picked it up at their HQ day after. They offer very wide range of packages that are reasonably priced and can be changed anytime you need in the app. They also upgraded packages from time to time without raising the price. Most importantly, they work in EU, including Slovakia (Lebara did not work there at the time, that's why I switched to Greentel), and their packages have plenty of EU data. (While not as much as in Denmark, it's still very reasonable).
Their customer support is nice as well, they recently helped me with my 5G connection issue I had with my new phone, even though the issue was on my side, not theirs.

I have been waiting more than 2 months for the internet my company ordered. I wrote an email with a question about the status of it one month ago, and still no answer.
I just called customer support, and all they could say was that my case was in processing. No estimate, no more information.

Package got to GLS on Friday and I had it on Satruday. It was a pleasant surprise for me, since I expected in on Monday.