mobile phone plan has increased

[Podso]

my mobile phone plan has increased from $45 to $53.72 Why???

Sonya

<removed for your privacy>

[Smiley3]

Ho Podso,

We can't tell you why you're plan has increased because no-one on Crowdsupport has access to customer's Accounts.

You'll need to contact Telstra by messaging in the My Telstra App on your mobile phone (blue icon in the Get Help section bottom right of the screen). If Codi the bot replies with an irrelevant response type "I want to speak to a consultant". You'll be placed in a queue for a Telstra Employee to reply to your message. It could take hours for the initial reply. You'll receive a notification on your mobile when they reply. 

[Jupiter]

I suspect that you are on the S plan and you may have been migrated from the old one to the new one (which is $55 per month) mid-billing cycle. This would result in a prorata charge for the current month of the new plan and a prorata refund of the old plan, giving an odd amount.

You should have received a notification about the change via email or SMS about a month to 8 weeks ago.