activation code not included and is not required. Contact your service provide to activate this SIM under your existing or new account. When you become a T-Mobile subscriber you will receive a SIM (Subscriber Identity Module) card along with the purchase of a phone through T-Mobile. Just one pay as you go rate for calls, one for texts and one for voicemail 20p per minute for the first two minutes each day, 10p per minute for the remainder of that day 10p per text.