winsim.de

Data privacy concerns

My partner and I had contracts for three years but eventually left. Yet, my partner is still unable to get them to release the number and has been without connection for two weeks. I was left without access to my number for four weeks after they changed my SIM to a new version without my consent while I was traveling! Additionally, they sold our data to a credit bureau. They lack English support, charge high prices, and take every chance to bill you excessively for roaming. I cannot recommend them; it’s simply not a fair service.

Date of experience: Aug 31, 2025

Rude communication and service

The communication and staff are extremely rude. They place you on the worst tariff and may even hang up on you. I strongly advise against using this service. You can expect scams and a lack of professionalism.

Date of experience: Aug 05, 2025

Worse it couldn’t become

Worse it couldn’t become. I travel to another place and the next thing I know they take 60 EUR for nothing

Date of experience: Jul 23, 2025

Bogus company

Bogus company. Sends you your bills way too late and then you can't book more data once you reach your limit because of "unpaid bills'. How can I pay if you don't send me the bill??

Date of experience: Jul 14, 2025

Sim from Hell

One of the worst possible technology related experiences possible in human existence!!! Stay away !!!

Date of experience: Jul 11, 2025

The worst sim in the world

Date of experience: Jul 01, 2025

Caution, they dont care

Caution! We are (still) customers of Winsim and have had very bad experiences. Services ordered are billed, but not provided. Complaints? We only receive AI responses with tips. Five complaints, five nonsense answers from the AI. Refund? None!

Date of experience: May 18, 2025

One of the worst service providers I…

One of the worst service providers I have ever seen. Professionalism level is zero, although I took 24 months contract but they took three extra instalments and didn’t give the refund. I don’t recommend this.

Date of experience: Apr 24, 2025

worst customer service

-i opted for a 24 month contract. To cancel the contract I paid 104 euros (my mistake i agree). They verbally promised that would be the last amount i paid but instead delayed the processing and charged me two more months of fees.-non existent customer service: all my emails were unanswered. Their no-reply emails send me bills every month and threaten with lawyer fees in case of non payment. Therefore i eventually paid. All my concerns were ignored.-Accidentally turned on data in another country for a couple of seconds and boom 64 euros got deducted. Will never choose you again winSIM.

Date of experience: Apr 16, 2025

If you have a serious enemy recommend this

If you have a serious enemy, recommend this SIM company to them. I signed a 24-month phone contract with data. The contract ended in December 2024, but even now, in April 2025, they are still charging money from my bank account.When I called to resolve the issue and get the refund, they gave me a different new contact to terminate the contract. I said, “Why? I don’t use your SIM card, and I don’t need any contract.” They told me that to terminate the old one, I would need to take out a new contract.Since April 2nd, I’ve been trying to get a refund, but I still on (25th april) haven’t received a proper solution. Every time I call, they tell me to send an email. When I do send an email, they completely ignore my actual questions. It feels like a never-ending game.This is one of the worst services I’ve ever experienced in my life.

Date of experience: Apr 15, 2025