Can't use 1000 emotes

[hallow haven]

Hi there,
I tried searching up for my problem online but could not find anything. I have currently a full emote list of 255 emotes but can't upload more. I've installed the 7tv extension, set it up properly but i'm still limited for 255 instead of the 1000. Is there anything i've missed in the setup or do i need anything else to have 1000 slots available?
Even got subscription too

[hidden ibex]

On your profile click on "Emote Sets", then click on the set you want to edit. On the top left you will have an edit button. Click on that and you can adjust the set capacity