All applications must be completed in full. This means that all requirements asked must be completed. If you do not understand what nameservers or IPs are look in the forum or post a question concerning what part of the form you do not understand.
This service is manned by volunteer staff, and with the amount of requests it is impossible to send emails for corrections. So the rule is "get it right first" and you will receive a confirmation email that leads to your request being fulfilled.

the form is asking for 4 nameservers and i only have 2, will that be a problem?

The spaces for 4 nameservers on the application form are there for those people who use free dns providers i.e. MyDomain.com, Afraid .org, Everydns.net etc. and for those hosts who have 4 nameservers. The requirement is for a minimum of two nameservers whose IP range is split between two different subnets or geographical locations. An explanation of nameserver requirements is discussed elswhere in this forum.