Finally got someone to send me a new kit and exactly the same problem, no ziplock bag. The hospital can't explain whats going on but have offered me a drive through test instead, so all good.
I received my Covid test and went online to work out what to do. I soon realised the pack did not contain the zip lock bag. I called 119 as instructed. After various option selecting I spoke to a bloke who told me that 'unfortunately the' and then I was cut off. I went back online to check that...