[Approximately, how much time should active in fiverr daily?]

Online time doesn't matter

[If I delete one of my buyers chat list from my inbox, can Fiverr see the conversation between me and that buyer?]

Yes, Fiverr can see

[If I change my gig title, will the gig url also change?]

No, the URL will be the same as before.

[How to reach clients]

Create proper SEO optimization gigs and Regular gig marketing. Stay active on Fiverr

[What is the reason for not getting clicks?]

Create proper SEO optimization gigs and Regular gig marketing. Stay active on Fiverr

[Fiverr account]

No

[Client Blocks me and not giving payment]

You can contact Fiverr customer support if you have an active order with the customer. If there is no order with the customer, I don't think even Fiverr customer support can help you in any way. It is better to take this as a lesson and go ahead and be very careful in the future.

[On which seller level we can get more orders?]

The level doesn't matter. If your gig is at the top of the search results, you'll get orders.

[Is Using ChatGPT For Writing Letters Without Letting Users Know Allowed in Fiverr?]

No, It's not allowed