Your test kit includes a pre-paid and pre-labelled Royal Mail Tracked 24 envelope for you to post your test kit back to us. Remember to post your test kit before the last post collection for your sample to arrive the following day. You can find out your last post collection times here.
The sooner we can analyse your sample, the better, so please only return your samples by post on Monday to Thursday so that there's no risk of delays over the weekend.