code: public OvhBalanceInformations credits_GET() throws IOException {
  		String qPath = "/freefax/credits";
  		StringBuilder sb = path(qPath);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhBalanceInformations.class);
  	}
docs: Get the credit balance and the remaining pages available for all our freefax
  
  REST: GET /freefax/credits