Please note: Royal Mail DOES NOT deliver samples to our lab on Sunday or Bank Holidays. We will not receive any post on Thursday 2nd, Friday 3rd, or Sunday 5th of June.
e.g. If you post your sample back to us on a Friday Night, we won’t receive it until Monday.
If you post your sample back to us on a Saturday, we won’t receive it until Monday.

Therefore, if you are travelling on a Tuesday and require a test in the 72 hours before you travel, you should consider using a guaranteed courier service to return your sample to us as Royal Mail won’t be a suitable option for you.