Misleading message

I received this text message June 27, 2025:

Xfinity Mobile: Great news! We are now giving you 20 GB/mo of prioritized data on this line at no extra cost, so you can get an even faster, more reliable connection. Just restart your phone and enjoy. 

Txt help or stop 

Msg&DataRatesMayApply

I interpreted this to mean we were given additional monthly data from 10 GB/month and therefore used mobile data more liberally. Today I received a message stating we've used more than 50% of our 10gb data and we're less than halfway thru our billing cycle. When I called the agent explained we don't have additional data only additional speed. This message is very misleading. As a result we'll likely incur additional charges by exceeding our allowable 10 GB shared data. I think this verbage should be reconsidered.