Asked why she got in contact she said: "It was for the purpose of the robbery, that's why they were called."
Ms Ahmed was arrested immediately after the robbery. She said her mother told police to arrest her after hearing the robbers say her name.
She said when taken into custody she flushed her phone's sim card down the toilet but it was later found by police. Her phone also had texts on which related to the robbery.
A day or two later she made her disclosure to police about her sister's death but denied anyone had suggested it would in anyway ease her situation with regard to the robbery she later pleaded guilty to.
She has yet to be sentenced for her part in that crime.