in src/main/scala/ZuoraService.scala [204:210]
def getAccountSummary(accountId: String): String \/ AccountSummary = {
logger.info(s"Getting account summary from Zuora for Account Id: $accountId")
val request = buildRequest(config, s"accounts/$accountId/summary").get().build()
val call = restClient.newCall(request)
val response = call.execute
convertResponseToCaseClass[AccountSummary](accountId, response)
}