I bought "standard" licenses and would like to change to "plus"

I bought “standard” licenses and would like to change to “plus”
Will I pay only the difference if I buy the plus license or will I have to pay the entire amount for the licenses plus even though I own and pay for the standard licenses?

greetings

Hello @Jagna_Nowotarska, as you have already paid for a plan, we will not charge your card immediately. Instead, we will convert your remaining “Standard days” into “Plus days” at a prorated cost. You will then be charged for the Plus license when these remaining days expire. If you wish to know the exact date that your credit card will be charged, just go to your ‘Settings Overview’, located in your ‘Account Settings’ after you have upgraded the license. I hope this helps.