Have been with o2 for over 18 years, I sent my Apple Watch back to them for repairs as it was faulty and they sent back a refurbished one with no communication at all during the week this was gone. In cancelling my Apple Watch they managed to also blacklist my mobile device. I have spent hours on the phone to customer service pied off from department to deparment, written three emails to complaints service with no response and I am still without a working phone or watch which has been on going since 13th May. I run a small business which I've lost money on from not having a working device, I have just had surgery so I'm not able to be in contact with my medical team and I am unable to do online banking whihc requires two step authetication in the form of text message to my mobile number so have incurred charges there too. I was offered £35 credit today when I pay £100 a month for both watch and phone each month (its been more than a month without these services) and refused any gesture of good will. So much for being a loyal customer where none of the above issues with device is my fault - it's just entirely unacceptable.