curl --location --request POST 'https://api.mediaconnect.no/capi/v1/client/credential/customers/check' \
--header 'Content-Type: application/json' \
--data-raw '{
"credentials": [
"+4787654321",
"kari.nordmann@gmail.com"
]
}'
{
"customers": [
{
"credential": "+4787654321",
"customerNumber": 327492
}
]
}