Congstar FAQ

Answers to your most common questions about Congstar.

Quick, simple, and helpful information at a glance.

What is congstar?
Congstar is a German telecommunication company that offers mobile phone and internet services.
What kind of services does congstar provide?
Congstar provides prepaid and postpaid mobile phone plans, DSL and fiber internet, and home phone services.
How do I sign up for a congstar mobile phone plan?
You can sign up for a congstar mobile phone plan online or by visiting a nearby congstar shop.
What is the difference between a prepaid and postpaid mobile phone plan?
Prepaid plans require you to top up your account with credit before using it, while postpaid plans are billed at the end of each month.
How do I check my remaining credit or data usage on my prepaid plan?
You can check your remaining credit and data usage by logging into your congstar account online or by using the congstar app.
What do I do if I have network or connection issues with my congstar mobile phone?
First, check if there are any network or service outages in your area. You can also try restarting your phone or adjusting your network settings.
I am unable to send or receive text messages. What could be the issue?
This could be due to a network issue or a problem with your phone's messaging settings. Check your network and settings, and if the problem persists, contact congstar customer service.
How can I change my congstar mobile phone plan?
You can change your plan by logging into your congstar account online or by calling the congstar customer service hotline.
My internet is not working. What should I do?
First, check if there are any network outages in your area. If not, try restarting your modem/router and make sure all cables are connected properly. If the issue persists, contact congstar customer service.
I am having trouble setting up my DSL or fiber internet. What should I do?
Follow the instructions provided by congstar when you signed up for the service. If you are still having issues, contact customer service for assistance.
How do I cancel my congstar service?
You can cancel your service by calling the congstar customer service hotline or by sending a letter to congstar's cancellation address. Make sure to include your account details and reason for cancellation.
What happens if I don't top up my prepaid mobile phone?
If you do not top up your prepaid mobile phone, your service will be suspended after a certain period of time. You will have a grace period to top up before your number is permanently deactivated.
How do I top up my prepaid mobile phone?
You can top up your prepaid mobile phone by purchasing top-up cards at a congstar shop or online through the congstar website or app.
I forgot my congstar account password. How can I reset it?
You can reset your congstar account password by clicking on "Forgot password" on the login page and following the instructions.
My phone displays "SIM card not detected." What should I do?
This could be due to a faulty SIM card or a problem with your phone's SIM card slot. Try cleaning the SIM card or inserting it into a different phone. If the issue persists, contact congstar customer service.
How can I block a specific number from calling or messaging me?
You can block a number on your congstar mobile phone by contacting customer service or through your phone's settings.
Can I use my congstar mobile phone abroad?
Yes, you can use your congstar mobile phone abroad, but additional charges may apply. Check with customer service or your plan details for international rates.
I received a bill from congstar for services I didn't use. What should I do?
Contact congstar customer service immediately to report the issue and request a review of your bill.
My internet speed is slower than expected. What could be the problem?
This could be due to network congestion or a problem with your modem/router. Try restarting your equipment and if the issue persists, contact customer service for further assistance.
Can I keep my current phone number when switching to congstar?
Yes, you can keep your current phone number when switching to a congstar plan. Just make sure to inform congstar customer service during the sign-up process.
How do I activate my new SIM card?
Your SIM card will automatically be activated once you have completed the congstar sign-up process and inserted it into your phone.
My home phone is not working. What could be the problem?
First, check if there are any network outages in your area. If not, make sure all cables are connected properly. If the issue persists, contact customer service for assistance.
My internet speed is throttled even though I haven't reached my data limit. Why?
Some congstar plans have a usage cap, where your internet speed will be slowed down after reaching a certain data limit. Check your plan details or contact customer service for more information.
What is the return policy for congstar products?
Congstar offers a 14-day return policy for unused products, which can be requested by contacting customer service.
How can I track my congstar order?
You can track your congstar order by logging into your account online or by contacting customer service for more information.
Can I change my billing cycle?
No, you cannot change your billing cycle for postpaid plans. It is set according to the day you signed up for the plan.
Is there a way to monitor my data usage to avoid going over my limit?
Yes, you can monitor your data usage through the congstar app or by logging into your account online. You can also set up notifications to alert you when you are close to reaching your limit.
What should I do if I am not satisfied with my congstar service?
If you are not satisfied with your congstar service, you can contact customer service to discuss possible solutions or file a complaint through the congstar website.