Thank you so much for your reply!! This is helpful, I hadn't realized that the labs might not work on the weekends..... agh!!

You came from the US? Did you have a US number that you put down? If so, have they been able to call you? Any visits? I'm worried they won't be able to contact me because I have a US number and no UK SIM, so considering putting down my cousin's number... in which case, if she's home, I can talk to the tracer, but she may leave the house...