====/itg/getrelationbalance====
Retrieve the current balance of pre-deposited money for a specific client.

parameters:
|auth	|the authorisation code you received from Intogolf BV (mandatory)|
|relnr	|internal id of a golfer within the domain of ikgagolfen|
|relnrlocal	|local id of a golfer within the domain of the golfcourse|

At least one of the parameters relnr, relnrlocal needs to be provided, otherwise the return code 449 - Retry with valid parameters is returned.

If a wrong authorisation code is provided, the backend will return 401,“Unauthorized”

example: https://backend.intogolf.com/itg/getrelationbalance?auth=<your authorisation code>&relnr=659764

result:
<code>{
{

    "getrelationbalance": [
        {
            "balance": 304.73,
            "pmtnr": 300,
            "pmtname": "delflandcard"
        }
    ]

}</code>

|balance        |current balance|
|pmtnr      |internal id of paymethod that is associated with this balance|
|pmtname|name of the paymethod|