Nameservers Stuck!!

I recently moved my domain to AWS, all has gone well and transferred. For some unknown reason, the nameservers are stuck on Cloudflare's NS.

AWS is confirmed to be the registrar and my previous domain supplied has assured me that there is nothing at their end stopping the nameservers. The Cloudflare site is also removed, along with all the DNS entries.

AWS Hosted Zone all setup with A, CNAME, MX and NS recorrds

But still, the NS refuses to budge, and hence, the AWS DNS not kicking in. Advice, please?