Well the previous step was really the final step but if you find even Otelo cannot sort out a resolution for your complaint out then you are only left with one real option....
LEAVE THREE!!! Taking legal action is not really a viable option unless your issue has left you heavily out of pocket.
That's right! ride out your ripoff 18 month contract and leave them for another, more efficient service provider.
It will hit 3 hard if several hundred if not thousand customers leave them, don't fall into another trap even if they offer you a cheaper package as you'll end up back in a vicious circle with them.
Other companies such as Vodafone, O2, and Orange offer exceptional customer service, network coverage and deals which can match 3's.What you need to do is when you are near to the end of a contract, ring 3 customer services (yes again!!!) and ask for your PAC number (Porting Authorisation Code).
This number when given to your new service provider will allow you to keep the same number you have been using with 3.