Unable to change my NBN plan

[CalB]

Hi, I'm trying to change my NBN plan from the 'NBN12 100GB data' to the 'NBN12 UNLIMITED data' plan but I get this message: Unfortunately there was an unexpected error when submitting your registration. And this error code: < E:adsl_comm:thread_exists >. I would appreciate any help in understanding what this means and why this is happening when it is supposed to be easy to change plans. Thanks.

[Riezl]

Hi @CalB,

Welcome to TPG Community!

We'd like to look into this and help with the resolution. We have located an account using your community details, but we'd like to make sure that we got the right one. Please PM us your TPG customer ID, username and complete address.

To send a PM, please refer to this link: How do I private message (PM) in the community