Worst company in the UK award goes to BT. i have never dealt with so many unorganised, no clue what it means by good customer service, rude, make promises they never keep for a record breaking time of 5 months with on going issues complaints. Their excuse is that they have far too many people with similar complaints so its takes them 2 weeks in my case 2 months to respond my emails. Please ask a billion questions before signing up for BT cloud voice or any services with BT or shop around and compare prices with smaller companies first, speak to people whi have the system you want and ask them to tell you pros and cons. BT will mis-sell to you and ignore you once you have agreed a contract. They will avoid you once you mention you are not happy and want to end the contract. Really disgusting service from the BT cloud voice team staff.