I was looking for the same thing-- as an existing customer hoping to get the $34 per month plan for 50 GB data at 5G speed but that wasn't available to me. I clicked on Subscriptions to see what I currently have, then clicked on Change Subscription ...
thanks for the tip about the 50GB for $39. I willl need to recheck as I did not see it while looking for the boxing day sale available to new subscribers, assuming it was available to all. Seems illogical to not also offer to current subscribers.
It is very poor Customer Retention to offer better deals to new subscribers without offering same to existing loyal customers. I am very disappointed, Public Mobile. I hope you are listening.