what reason did they give for refusing ? did she overstay the first time she came ?, was it that the eco didn't think she would go back ??
i think it might be difficult now shes been refused 2 in a row, unless you show the reasons for the refusal have been dealt with. if you have maybe appeal, visitor visa have a high refusal rate anyway, and now the max time is only 3 months.
maybe time to use another visa route.
