I have tried several times to change my main domain to sondargames.co.uk . I have that domain registered with namecheap.com and the DNS of the domain is set to ns1.x10hosting.com and ns2.x10hosting.com

I keep receiving the error message C085843B. I understand this usually because the name servers have not been entered. But I have verified with a WHOIS that they have been entered correctly.