ДНК S05E99 - Выпуск 658. Бросила дочь по телефону

The orphanage orphan decided to look for her relatives. And suddenly she received a message from a woman who called herself the sister of her biological mother. However , the alleged mother immediately stated: this is a mistake and she never had a daughter. Who should I believe — the supposed relatives or the one who may turn out to be the cuckoo mother?