Hi Neil,
I'm so sorry for the delayed reply. For some reason, I didn't receive a notification that you'd responded. So sorry about that!
Okay, so there are some guidelines you need to refer to here. It does sound like your business may qualify as a department of the train station. Google's guidelines on this state:
Public-facing departments that operate as distinct entities should have their own page. The exact name of each department must be different from that of the main business and that of other departments. Typically such departments have a separate customer entrance and should each have distinct categories. Their hours may sometimes differ from those of the main business.
- Acceptable (as distinct listings):
- "Spring Gardens Optical Centre"
- "Cafe Nero"
- "Manchester General Hospital Department of Dermatology"
- Not acceptable (as distinct listings):
- The Apple products section of PC World
- The hot food bar inside Meadowhall
For each department, the category that is the most representative of that department must be different from that of the main business and that of other departments.
- The main business "Barclays" has the category "Bank" whereas the department "Barclays Advisors" has the category "Financial Consultant"
- The main business "Southend Toyota" has the category "Toyota Dealer" whereas "Southend Toyota Service & Parts" has the category "Auto Repair Shop" (plus the category "Auto Parts Shop")
- The main business "GetGo" has the category "Convenience Store" (plus the category "Sandwich Shop") whereas the department "GetGo Fuel" has the category "Petrol Station", and the department "WetGo" has the category "Car Wash"
So, from reading the guidelines, and given that you have a distinct name, the above should clarify your eligibility for a GMB listing for each of your branches.
However, regarding your phone number, that does concern me a bit. Google states:
To be totally safe, you should have a unique phone number for each branch that is being answered at each branch. Any other route can lead to NAP confusion, ranking issues and other problems. So, before you start listing your branches, I would recommend resolving the phone number issue.
I hope this helps, and please let me know if you have any further questions!