This is the message from Google.
" . . . Starting on April 2, 2019, G Suite Edition will increase by $1 Per Email address Per year (from $5 to $6 )
The new prices will go into effect the first time their plan renews on or after April 2, 2019. . . "
For more information, visit
https://cloud.google.com/blog/products/g-suite/new-pricing-for-g-suite-basic-and-business-editions