Also missing: tape of pizza with Ujjal?

Very early in the reportage of the Grewal affair was an admission by Ujjal Dosanjh that Grewal and he met for pizza and discussed Grewal's potential floor-crossing. In two of the recorded phone conversations with Kalia (the fifth and sixth on the transcript), the date is arranged and confirmed: 8 pm on Monday, May 16th.

No recording or transcript of the pizza date has been released. The next transcripts come from 1 pm on Tuesday, May 17th.

So, here is the question. Was the pizza date recorded? If so, why were the tapes not released? If not, why not?