As @heyfellow1 says you can’t communicate outside Fiverr using Zoom.
However, I’ve looked at your gigs and it looks like you don’t actually need to use Zoom anyway.
I don’t know everything you’re doing. However, I think a great selling point for you is to always offer a video reading for people. They can see you shuffle the cards and deal them so they won’t think they’re just getting the same standard report you send to everyone.
I’d also create a gig just for Tarot and another gig just for oracle so people know exactly what they’re getting.
So, currently your tarot/oracle gig says…
“I’ll do a tarot/oracle reading for you that will be focused on empowerment. If you have a hard decision you need to make, want to reflect/explore on an aspect of your life, or want some advice, this is the one for you!”
From a marketing perspective you want to take risk away from your buyer so I’d replace it with something like this for the tarot gig…
“You’ll get a video of me shuffling the Tarot cards specifically for whatever question you’ve asked me to delve into (make sure gig requirements ask this question). In your personal video I will say your Fiverr user handle so you’ll know the Tarot reading is only for you. Then I’ll deal the Tarot cards out and give you your specific reading based on the question you’ve asked”.
That takes the risk away from the buyer as they now know that your reading is for them because you’ll say their user handle (I’d use it several times during the reading) you’ll also say the exact words they used in their question so there’s no doubt you’re addressing what they asked you to do.
I’d also make sure you have a sample video which demonstrates how a Tarot reading would go because people are attracted by pictures!
So, good luck!