Nameserver don't update

Hello, I was create domain in Cloudflare, go to my reseller domain panel and I change the NS to Cloudflare, after 48hrs Cloduflare don’t detect changes.

I do some test to verify the propagation and the result is my domain respond with DNS of Cloudflare, but on my account show the message: “Pending Nameserver Update”.

Can someone help me.

Captura de Pantalla 2020-07-26 a la(s) 9.13.44

I think it is the problem of the domain name service provider. I did not find the corresponding DNS settings using the Google DNS test.