Purchase domain names for SEO

Url of the service: https://www.domstocks.com

Can we pay with Paypal? Yes

Free push to your account: Because of ICANN regulations, one can only transfer out a domain name after 60 days from the creation date.

If OnlineStrat catches a domain name for me, who is the registrar?
OnlineStrat uses several services

Can I communicated my nameservers settings?
How much does it cost?

If Onlinestrat does not catch the domain names that I have backordered, or if I decide to cancel the backorders, do I need to pay something? No