My friend visa is a tourist visa she was offered a...

 the renewal is done through the following link:

 ROYAL OMAN POLICE (rop.gov.om)

With the need to take into account the following:

Taking into account the following:

-A copy of the applicant's passport and documents must be attached to obtain the visa.

-The applicant must observe the laws in force in the Sultanate of Oman, and whoever violates this is subject to legal accountability.

-The worker or employee is not entitled to work for someone other than his sponsor in any case.

In all cases, the General Directorate of Passports and Residence has the right not to approve the application without giving reasons.

-It is not permissible to renew the residence of a foreigner while he is outside the Sultanate of Oman.

-Passports with an extension from the embassy to submit the application are not accepted.