What should I do if my Non-B visa application is still pending and my VOA stamp expires soon?

Hello everyone,

I arrived in Thailand last May 4, I applied for non B visa last May 14, supposedly today is my schedule for visa stamping but the immigration officer told me that my application has not yet approved. I need to come back next week. My problem is my VOA stamp is until June 2 only, what should I do? Thanks for your help and comments.

Myra