Onlyfans + Snapchat premium?

Alright so on my onlyfans fans always ask for a snap premium. I’ve tried it but people think i need to reply and send nudes 24/7. So i guess i was wondering what or how do you guys run your snap premiums? I feel bad when some dudes buy it but then think i owe my whole day to them or try and use it as a dating site.