This will be our 2nd. Last year I double-checked all the references I got by looking up the telephone numbers on the White Pages (she was French) checking they matched the address on the reference and then calling each one in France to check they had written it.
This year I have found a 19 yo Italian girl on one of the au pair websites. I asked for a reference and I've had an email directly from the mother of a girl she looked after for 3 years in her home town and everything was fine with that. So I asked the mother for her address and telephone number so I can verify who she is and give her a call. But she's replied with a mobile number and says they don't have a landline at home. I wondered what to do really? It's the only reference I have but not sure how to double-check it.