Hey sniffles, did you send the package as recorded/special delivery (or however it is called actually) to check whether (and when) it left the UK?

I wouldn't worry yet. It is upsetting when it is something so important, but really you have to be patient. Sometimes packages take a little longer than expected. I'm also not sure whether the current problem with planes in the UK might have delayed things...

I know it is not ideal, but if worst comes to the worst, try again - maybe using a tracking service. Do take care. (((sniffles)))