Hi 

I'm receiving some online trading calls every night asking to buy stock 

I've told them I'm not interested and I've been using a call block app on my phone for the last two months. 

It's a number from +44 and they keep changing their numbers and so far I've blocked around 8 ranges of numbers which they always use. 

I've called 2degrees to see if they can do anything and they've advised to note down the date and time . They also said that if I receive 3 calls then I can call them up and they will investigate . 

But two weeks back when I did call they said they can't do anything because its an overseas number. 

Is there anything I can do other than to change my number? 

Thanks