My worst experience (so far) is the English helpline.

At first I could not understand why a mobile company would use a pay landline to deal with customers. Until I had to use it.

Yes, it is in English but it is also a bit of a scam, isn’t it. You might have to wait ten minutes to get service.

Then when you do talk to someone they move at a snail’s pace, checking, rechecking, double checking all the details. Then summarising everything that has been checked and rejected.

It finally occurred to me that this is a little money-making side venture. Money for nothing, in truth. The longer you stay on line, the more money they make. 

Hats off to them. 

edit o2_Tobias: moved to a new thread, old thread had nothing to do with this subject