There are some settings in the admin which may help you:

admin>configuration>my store>store status
What is your Store Status
0= Normal Store
1= Showcase no prices
2= Showcase with prices

admin>configuration>customer details>customer shop status
Customer must be approved to shop
0= Not required
1= Must login to browse
2= May browse but no prices unless logged in
3= Showroom Only

admin>configuration>customer details>Customer Approval Status
Customer must be Authorized to shop
0= Not required
1= Must be Authorized to Browse
2= May browse but no prices unless Authorized
3= Customer May Browse and May see Prices but Must be Authorized to Buy