Bad service from MiWay and disputes department

So I received an email from MiWay stating that ' The Insurer does not deny that there is damage to the property, however the service provider could not find any damage to the roof tiles'. on the other hand the policy states that I am covered for damage caused by acts of nature like wind, storm, hail and floods. I am concerned that damage is defined as something broken, however there are valleys underneath the tiles of which have rain/storm can damage their structure but both service provider and MiWay did not look into that. MiWay please provide me with a reasonable solution, repairing internal damages does not solve the problem.