Brandi Glanville, like many others, has been unable to contact her co-star Kim Richards since her alleged relapse in Mexico.

Brandi Glanville Comments On 'Vanderpump Rules' Cast's Druggy Behavior

During her latest Podcast, the Real Housewives of Bevely Hills star spoke of her longtime friend, whose whereabouts remain unknown.

“Everyone is calling me – TMZ – everyone under the sun. I don’t know anything," Glanville confirmed, according to a report by Reality Tea on Saturday. "We talked before she left and she was in a good place. She’s not returning my texts – which she always does. It’s just frustrating. I don’t want anything bad to happen to her because she has a really good heart at the end of the day.”

Is 'RHOBH' Star Brandi Glanville Trying To End Her Feud With LeAnn Rimes?

Richards arrived to Mexico over a week ago to attend the second wedding of her daughter, Brooke Brinson, which took place in Cabo on May 23. Days later, Richards was expected to return to sober living, but so far, she has yet to do so.

Glanville went on to admit Richards can be “a little nutty,” and added, “She’s got a history – her life is really interesting! There’s more there if you delve deeper. I’ve texted her since she’s been gone and I haven’t heard back and I’m just praying for her.”