Normal
Susie, Martie and Sheila on the Special Education 101 board always advise not talking in person or writing emails when sending requests for evaluations (including follow-up requests). I think you should send a letter (certified mail, of course) to the head of Special Education in your SD that includes a copy of your original request and emphasizes that the evaluation has not been done in the mandated time frame. Sending ALL correspondence certified mail is your legal safeguard.