Incorrect extension denial comment

**Describe the bug in current situation**
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A Public Body Applicant Consent extension was requested from, and denied by, the applicant. This is reflected accurately in the 'Extension Details' section in the Mod site (and in Axis). However, I noticed that in the Request History Comments it says "The OIPC has denied a 30 day extension", not the applicant.

**Link bug to the User Story**

**Impact of this bug**
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**Chance of Occurring (high/medium/low/very low)**

**Pre Conditions: which Env, any pre-requesites or assumptions to execute steps?**

**Steps to Reproduce**
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2. Click on '....'
3. Scroll down to '....'
4. See error

**Actual/ observed behaviour/ results**

**Expected behaviour**
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GIVEN an extension was denied by an applicant
WHEN the extension is denied
THEN then comment in the request history should say "The applicant has denied the 30 day extension."

**Screenshots/ Visual Reference/ Source**
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Start by reproducing the denied Public Body Applicant Consent extension and compare the Extension Details section with the Request History Comments in the Mod site and Axis. Trace where the history comment is generated; done means the comment identifies the applicant as the denier and existing extension behavior remains accurate.

Written by the indexing model from the issue text.