GIG Placement Issue

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Hello,
I have a issue with my flyer gig placement.
yesterday it was in the “Best selling” PAGE 4 so today i got the new order and completed with 5 star reviews.but its on now page 5 bottom.how the reach my gig to page up.

its actually in the page 3 since last 3 weeks.but some technical issue affect me and its hidden in my gig.after i contact cs and resolve it.somehow after i check in its on 16 page.after 3 days its on 4th page.as i mentioned before now its on 5 page bottom after i completed today order.

why is that?i do not done anything wrong.all orders are 5 stars reviews and all seller requirements are 100%.

Someone experienced this situation on nowadays?

Thank you all