@NatNat87 You can block all unkown numbers, but that can cause problems, such as not being able to receive doctor's calls, which are usually withheld numbers. If the calls are coming that frequently, a number change may be the only solution. O2 will allow you one free number change. You'll need to speak to customer service. 8-8.30 am is the best time to call. https://www.o2.co.uk/contactus
My son has been getting them all night too! He answered one call and it was just quiet so put phone down and was charged £2 for ringing a premium number for 15 seconds! O2 said to report the numbers to the police!!! Said they cant do anything about it except change his number or use an app to block - all the calls are different numbers and all from places like algeria and guinea! So very difficult to block but that is what hes trying at the moment as O2 were not very helpful - DO NOT ANSWER THE CALLS OR RING THEM BACK!
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