Okay we have a result.
After spending a few hours on the phone with sky, I got a text asking me to unplug the box for one hour, after that the phone will work correctly.
It is now working correctly.
Previous to that I got though to the tech department who suggested the problem was with my phone and another would work properly, I told them my phone worked okay previously.
I then hit an impasse with them after they kept on telling me I should look for DTMF setting on my phone and I couldn't.
I then called up retention department where the member of staff was helpful and passed me on to another member of the tech department who needed evidence of the numbers I tried to call and escalated the problem, which resulted in the text they sent me and the phone working.
Thank you for replying & just a thought, the first sky employee I contacted yesterday told me that she already had about five people ring up with the same kind of problem but they will now go and buy a new phone after talking with her, I told her I wouldn't buy a new phone.
