I have an existing T-Mobile 30 dollar Prepaid Plan and have a HTC Incredible Phone using a regular SIM Card.
I recently got an Samsung Galaxy S3 Unclocked Phone which uses a "Micro SIM" Card.
I went to T-mobile website and purchased a Prepaid activation Kit for 99 cents which has the Micro SIM Card.
Once I receive the Micro SIM Card, how do I tell T-Mobile or activate this new Micro SIM Card to replace my regular SIM Card? I dont want to loose my 30 dollar 5GB 100 minutes plan and also want to keep my existing number.
I am afraid that the activation kit will assign me a new number or consider it as a new account.
I purchased it just for the micro sim card.