From the time you drop it in the mailbox results show up in about 8 days.
If you haven't gotten an email notice about your results these are the top culprits
1) You didn't put postage on the return bag or box ($2.64 I think)
2) You didn't put the right amount of postage on the return box/bag
3) You put just one stamp on the box
4) You forgot to Logon to the Triton Labs websitre and registrer your aquarium
5) You created a Triton account created the profile for your reef, but didn't enter the size/volume of the tank.
Those are the top reasons results dont appear when they should. THere is also the USPS losing the mail.,
If you put the wrong postage on, the Postoffice holds those tests for p to 6 weeks and then delivers with a bill to pay