Your registrar can ask to renew the registration of your domain name.
They send you an email with a request to accept the renewal.
If you don’t wish to renew the registration of your domain name through your registrar, just ignore this email. Your domain name is still registered by DK Hostmaster and you can't loose it.
Renew through DK Hostmaster
If you choose not to renew your domain name through your registrar you will receive an invoice from DK Hostmaster. You don’t need to do anything until you receive this invoice.
Contact your registrar, if you don’t want them to renew your domain name in the future. DK Hostmaster cannot change this setting. When it has been changed, the renewal will automatically happen through DK Hostmaster.