Hi @JLuz,
Thank you for your message. I'm sorry to read that high costs were incurred! I can imagine you were shocked by such a high bill.
At Simyo, we are transparent about the fact that we do not have a data limit. For this reason, we always send two warning text messages at 80% and 100% usage of the internet bundle. These text messages come directly from the network and are always leading. In the last text message we also clearly indicate what the tariff is from that moment on (€ 0.15 per MB) and that it is wise to turn off the internet or to buy an internet bundle. From our side, we do our best to warn our customers in time. If you have incurred high costs outside your bundle within a short period of time, we will block your SIM card as a precaution. You can then unblock your SIM card by making a deposit through Mijn Simyo.
If you didn't receive the warning texts, I would have to look further into this. Can you send me a private message with your personal data? I would be happy to take a look at your connection then.
Greetings,
Roeqajja