I've ordered second server today. SM has just called me to infrom me that there could be no room to place new server near primary. She also said that if I want to take all servers to new place I have to pay 75$ (for one or all servers???) and get new IP. (that is no good)

I am planning to buy at least one more server.Tell me if it is possible to connect them together.

Server is located at RACK BG56

This is very possible and can be done if your servers are in the same DC

We'll need to relocate your first server in order to make this happen. There is a fee for this and you'll get new IP's since your server will be serviced by a different router. But hey this is what DNS is for, right?

whats is DNS?

The fee to relocate a server within the data center is $75. If you need to relocate a server to the new data center it is $75 an hour with a 2 hour minimum. You will get new IPs also.

This is DNS server among others [primary nad secondary] so I think that secondary should be reloacted day after to avoid some mess?
Fee is for all servers or for each?
p.s
So you are definitely sure that there is no room?

The fee is per server. We do not leave space next to servers when they are built that is why you will have to have it moved.