Mobile phone users high bid of £ 200 ', each of

Three quarters of mobile phone users are wasting nearly £ 200 a year on average because they are the wrong contract, research suggests.
People overestimate how many minutes they will spend on the phone the main reason is that most use only a quarter of their monthly allowance.
The researchers concluded that the UK mobile phone users waste 50 billion pounds a year contract, wrong case.
Bill of mathematical research and analysis group Billmonitor more than 28,000.
Oxford-based business looked at all the major networks customer data, in addition to 3.
Bill shock '
 Its research shows that mobile phone users send 300 text per month.
The study also found that more than doubled their customers a year use of data as they surf the Internet in the smart phone.
Most people use their mobile phones four hundred thirty-nine pounds a year.
Billmonitor said, people higher prices than they need to plan to avoid penalties for exceeding free minutes they go.

The "bill shock" the fear is so great that customers typically buy four times the talk time than they use.
Never more than three quarters of the customers free talk time of their monthly allowance, because in many cases, they are unnecessarily large contracts.
'Irrational'
 "Everything is expensive, when you go to your allowance," said Dr. Stelios Koundouros, one of the founders of the company.
"However, after four major contract at least half of the compensation error of the contract is received, this is not a rational response."
Continue reading the main storyMobile phone highs and lows£ 1,700 - the highest monthly bill was found in the research processOne five ○ ○ pounds - the highest monthly international roaming bills£ 560 - the highest data roaming (approximately) monthly bill£ 100 - the highest cost of a call roaming15.5 〇 pounds - 5% of mobile users per month less than the cost of thisSource: BillmonitorAnd those for the customers to choose too large talkplans, the researchers found that many people were signing up to deal with those too small to be hit by punitive charges.
Study found that a customer in the wrong customs dropped by a third in this category.
Usually, Koundouros said Dr. reasons behind this choice is the psychological - Select a lower plan, users can convince themselves that they can run their phones more affordable, even if their final bill did not reflect this.
Taken together, Billmonitor calculation, these two groups - those who underestimate their use and those who overestimated - an annual 4.9 billion pounds of waste.
It works out so that each client £ 194.71.
The popularity of smart phones
 The report also identified a new trend may eventually have to pay the cost of mobile users more money.
It said the increasing popularity of smart phones means more customers are now on the increase in data plan.

 Smart phone users data requirements may be difficult to estimate their average monthly volume of 133MB, about 500MB more than 5% of users.
However, the report warned that the tariffs in mobile networks in many different levels of data may cause confusion among users.
"Data is tricky, because you do not know what kind of data into a Web page or download the movie to find. This may be one to 100 cases, and other time factor," said Dr. Koundouros.
"Hierarchical data allowance is being considered by operators. As we have seen people make mistakes in the minutes, we hope to see them use their data more wrong."
Billmonitor created by the Operation of the University of Oxford mathematician.
The team has developed a large number of variables in the analysis of complex system models need to be considered.
It is calculated that in the UK, there are many different contracts arranged a total of 8,134,979 issued mobile phone customers.
Billmonitor comparison system, which is the only one approved by the telecommunications watchdog Ofcom to compare the user's real-life bill to the current transaction.