Lincolnshire send out renewal forms stating to send them back at least 4 weeks before your renewal date to ensure they can process them in time ! I sent mine back 6 weeks before my date. I rung them , as I noticed my cheque had not been cashed. They had no record on the system of my renewals. She stated they had a backlog , of logging them on the system. My renewal date was the Sun before the last bank holiday Monday. On the Thursday before, having received no word or temp certificates, I rang again. They had no diary entry to say I needed temp certificates !! She stated she would do them on the Tuesday, until I told her I would be in unlawful possession of firearms ! She then did them that day and I picked them up. A sad, shocking state of affairs !