NBN plan change error

[kamsin]

Keep getting the below error to upgrade plans, also no option to get back on the NBN50 plan I was originally on as it says NBN co cannot assatain the speed that is available?

[Anonymous]

Hi @kamsin 

Let us help process the plan change for the service. To proceed, send us your account details via PM.

How to send a PM? 

Regards,

NBN plan change error

Keep getting the below error to upgrade plans, also no option to get back on the NBN50 plan I was originally on as it says NBN co cannot assatain the speed that is available?