This was by far one of the most painful experiences I've had renovating my entire house. Firstly, next day delivery did not exist. 4 days later I sought the whereabouts and tracking information. The tracking details from DX shipping were useless. I call them up and ask for ETA, next day sir. Take time off work to obviously receive the cylinder and no arrival again! Call them up, they couldn't find the driver. What!? Call up Telford, it will be worn you tomorrow. Ok great. Another day, still lack a cylinder. Call them up, can't find the cylinder!!! Call the manufacturer and get a new one. Over a week later after false promises and delivery times, it finally showed up 5mins before last delivery time. What an absolute embarrassing farce of an that experience was. Wasted countless hours of people's lives due to complete incompetence.