congstar.de

2.1
2.1 Based on 61 reviews

Für mehr Fair: Mit congstar kostengünstig telefonieren und im besten 5G-Netz surfen. Entdecke die Vielfalt der congstar Mobilfunktarife, die dir ermöglichen, mehr für weniger zu erhalten – auch ohne langwierige Vertragsbindung. Mit GB+ erhältst du in viel...

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Average Rating

2.1

/
5

61 Reviews

5 Star
20%
4 Star
3%
3 Star
3%
2 Star
11%
1 Star
62%

All Reviews

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Review Time

Demi Ross
Increased costs due to deregistration oversight

I faced fines between 300 and 400 euros after moving abroad without completing the deregistration process. As a result, I continued receiving communications and ultimately incurred fines for unpaid dues. I had to transfer 618 euros to avoid being reported to a credit agency.

2
Date of experience: Dec 20, 2025
Gus Powell
Fantastic experience!

Absolutely fantastic! So pleased with the service!

5
Date of experience: Dec 19, 2025
Flafla59
Disappointing AI customer service experience

As a long-time customer, my recent encounter with customer service was shocking and frustrating. It feels like the support has been entirely automated, with no real assistance available. After not being charged for my account last month, I received an email stating my payment plan was canceled and I owed the full amount immediately. When I inquired about this, I got a generic response that didn't address my questions at all. It made me lose all hope of continuing as a customer. I strongly advise others to be cautious, as you might find unexpected charges with no explanation.

1
Date of experience: Dec 09, 2025
Tom Foster
Avoid contracts if you plan to leave the country

I was fined between 300 and 400 euros after moving to another country without completing the deregistration process. As a result, I continued receiving bills and ultimately faced fines for unpaid amounts. To avoid being reported to a credit agency, I had to wire 618 euros.

2
Date of experience: Dec 02, 2025
Bruno
Lack of customer care

I ordered internet service weeks ago, but it's still not set up. The first issue was a delay in processing my direct debit, which caused my chosen tariff to increase by €3/month. When I called, they dismissed my concerns, saying it was 'yesterday's tariff.' The second problem was scheduling an installation appointment, which took a month. On the day of the appointment, they didn’t even ring the doorbell and called while I was unavailable. When I reached out, I was told to wait another 10 days, and the call ended without booking a new appointment. Waiting six weeks for internet in this day and age is unacceptable.

1
Date of experience: Nov 28, 2025
Charli Howard
Lack of response to urgent issues

I need someone to finally respond to my emails. There seems to be an attempt to cancel a service I’ve already paid for, which is unacceptable. The payment system needs significant improvement before offering long-term contracts. Since switching to this plan, payments have not been recorded correctly, and now my subscription is at risk of cancellation again. It’s hard to believe I’ve supposedly used my phone without payment for 15 months. I need this resolved immediately and expect confirmation that my service will remain active.

1
Date of experience: Nov 13, 2025
Carol Powell
User-friendly and fair pricing

Very user-friendly, full of information, and offers a fair price. Setting up a new tariff and cancellation is straightforward.

5
Date of experience: Oct 13, 2025
Julianne
Extremely poor service

Initially, everything seemed fine. However, after receiving my router, I struggled with internet connectivity and requested a technician visit. The first appointment was a no-show, and I waited for six hours. The second appointment also failed, and when a technician finally arrived, he didn’t even ring the doorbell. We ended up canceling the contract, yet the company continues to withdraw money from my account. I definitely do not recommend this provider.

1
Date of experience: Sep 01, 2025
Alice Johnson
Service not working after payment

I topped up 100 euros for a yearly package five days ago, but the service is still not functioning, leaving me without data when I’m out. Customer service has not responded to my emails. This is the worst experience.

1
Date of experience: Aug 05, 2025
Skyrigaya
Unreliable service and constant delays

This company is terrible and untrustworthy. The support team keeps saying that 'modernization' is in progress and it will be resolved soon. However, every time I follow up, I get pushed back to another date. My service has degraded over the years, and now I can barely get any connection in the city. I truly wonder how it performs in less populated areas.

1
Date of experience: Jul 09, 2025

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Business Details

  • Für mehr Fair: Mit congstar kostengünstig telefonieren und im besten 5G-Netz surfen. Entdecke die Vielfalt der congstar Mobilfunktarife, die dir ermöglichen, mehr für weniger zu erhalten – auch ohne langwierige Vertragsbindung. Mit GB+ erhältst du in vielen Tarifen jedes Jahr mehr Datenvolumen. Ganz von alleine und ganz ohne Aufpreis. Wir sind wiederholt zum Mobilfunkanbieter des Jahres gewählt worden, und zwar nicht ohne Grund.See more

  • language https://www.congstar.de/

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