The state of California (where Wayne's Word is based) includes about 5,000 native and naturalized species, and 41 percent of these species belong to the following six plant families: sunflower family (Asteraceae), grass family (Poaceae), legume family (Fabaceae), snapdragon family (Scrophulariaceae), mustard family (Brassicaceae), and sedge family (Cyperaceae).
Transferring your existing single phone number (wireless or landline) to T-Mobile number usually takes anywhere from 10 minutes to 24 hours. Transferring multiple  lines may take up to 10 days, however most requests are completed within six calendar days.
I haven't been able to get a firm answer on just what the time limit is, but the general principle is that if I turn my phone on within, say, 48 hours of the SMS having been sent to me, then I'll receive it...but if it's over 48 hours (if 48 hours is indeed the time limit) then it'll simply be lost forever.