Two Different Complaints Here
1. There are no human beings to answer the phones. We understand, they are helping customers inside the store, no problem.
2. The second problem seems to be this:
You have X amount of phone lines, I think you said 7. However it seems that they are either not all plugged into your phone system, or the phone company has put other lines in your rotary that are not on your phone system.
Problem 1 is completely understandable right now, all the stores went crazy. Problem 2 is that when people do call, they don't receive any recordings or auto attendant playbacks to hear your hours and such.