Disabled iMessage, now can't receive texts from iPhone users.
My sister-in-law has been going over her data plan, and we determined that iMessgae has been playing a role in this. Even though iMessage provides free text messaging, it still uses data and my SIL took advantage of her unlimited texting plan back when it was sms. thoudands of messages. So now that iMessage was introduced she has been going over her 2gb data limit. iMessage is not the sole reason, but at 300-500 mb a month in message data. Reducing that will help.
I instructed her how to diaable iMessage so all texts are send and received as SMS/MMS. She can send sms messages fine, but when someone tries to respond from an iPhone with iMessage, she doesn't recieve them. What do we need to do to fix this?
Thanks in advance.
iPhone 5, iOS 7.0.4