Yes – from now on an official Mobistar hater. Have been using their services for a while, and some things were annoying me time to time, especially the attitude towards clients (which is quite common in Belgian telecom companies). But this beats it all.

Bought a new phone, HTC Hero (btw really happy with it, report still to come). It has data access turned on by default which regularly (hourly) checks for new email/location info – that’s something I know for sure now. Was assuming that on Mobistar the GPRS costs 0.50 Eur / MB, as that was the amount usually used in the bills with some quantifier.
Well, that wouldn’t be a big problem. Actually is 0.50 Eur / session (limited to 1 hour and probably limited to some amount of data). So, since bought the Hero was online each hour because of the default features of the phone. My bill included 235 eur for the data services, which is 10.7 eur / MB. And there is an amount ready for this month (October), at 120 eur.

Note – I am not saying that it’s not entirely my fault. There is an option to view the current invoice amount online by a code #123#, which I only discovered while browsing Mobistars website after the bill.

The representative of Mobistar I called said – we could not have done anything better. Well I think they could have

* made the website for the tariff plan state something about the GPRS tariffs My15
* sent a warning SMS if my bill goes over 3 times the average invoice of last 3 months
* charged a price for a megabyte like the most do, at least from a point where a certain number of sessions is exceeded
* sent a warning SMS if I am online for 24 hours – that’s not very likely a wanted action

Our nice chat with the representative ended with me asking what do I have to do to leave the provider. And then I found out even more interesting news – as there is some kind of loyalty period, and if I exit during that period, there is a charge of 150Eur. And I have not taken a phone with my plan or anything like that (then it would be understandable).

Anyway, I have now switched to Mobile Vikings and so far very satisfied. They offer 1GB of data access on rate of 15eur per month.