public void DeleteMessagingPreferencesByCustomer(Guid userId, string customerNumber, string branchId)
{
//this also works for user default since customer = null for user default
var messagingPreferences = _userMessagingPreferenceRepository.Read(i => (i.UserId.Equals(userId) && i.CustomerNumber.Equals(customerNumber) && i.BranchId.Equals(branchId, StringComparison.InvariantCultureIgnoreCase)));
foreach (var pref in messagingPreferences)
{
_userMessagingPreferenceRepository.Delete(pref);
}
_uow.SaveChanges();
}