Confusion with plural usage form [duplicate]

Solution 1:

The plural form 'services' is used mainly because most institutions typically provide not just one service, but a variety or range of services.

In fact, when a single or predominant service is provided, the singular form 'service' is often used instead of 'services' as in laundry service, answering service and courier service.

Solution 2:

Emergency services:

Refers to the collection of emergency services. E.g.:

• Fire service

• Police service

• Ambulance service

The singular form, emergency service refers to any singular emergency service (e.g., fire service).

Similarly there are a set of location services:

e.g. find my phone, location based alerts, cell network search etc. (as the photo on Apples support site demonstrates, for instance)

Location services refers to all of them, location service refers to any one of the singular services.