I have had a Sim Plan with you since 2002  and am an 80yr old  it is only a small plan to have a mobile for mostly msg.    can you please tell me if this thing called I think 3g turn off will affect my phone.  My dauguter only bought me a new phone to put your sim card in last January   my Mb No. is 0422116519  BUT if you need to ring me it must be on my Telstra home phone because I can not hear very well on the Mobile 0886425305   Thankyou    Leita ... View more