Upgrading Magneta Max 55+ to GoPlus 55+ - Price Changed

Hi Everyone , have an interesting question:

I have been price locked into Magneta Max 55+ since 2018 at $45 per line with AutoPay.

I finally made the decision to upgrade from Magneta Max 55+ to Go5G Plus 55+ to take advantage of new promotion offers. However now it's $55 per line , due to recent price increases for new customers. However, old customers were locked in at $50 per line with auto pay. 
 

My question is even though we are upgrading now, as 2018 customers should our Magneta Max Price Lock guarantee us the Go5G Plus 55+ price lock of $50 per line instead of $55 with AutoPay since we are not new customers?

or are we screwed for not taking advantage of the upgrade prior to June 2024?

also sucks because 3 lines for new customers on regular Go5G Plus is cheaper with 3rd line free at $150.

It feels like if we don’t get the old $50 price , instead of $55 we are getting screwed.

Gracias