I have had exactly the same experience. £33.68 of extra charges to calls to 00160 483 10514.
5 calls each lasting less than 2 minutes. None of these calls appear in my call log and the phone was with me at the times of the calls so nobody else could have made them. I have spoken to EE which refunded me £20 as a goodwill gesture but was unable to explain how these calls were made. EE also put a cap on my bill so that no more calls can be made outside my standard charge package of £10.90 pm.
I explained to the EE support staff that there are a number of similar experiences outlined on this forum, some for much larger sums of money. However, they had no explanation and no suggestions as to what I could do to take the matter further.
I've been a customer of EE for 10 years and this is the first time anything like this has happened to me.
