BPH8

Hello, I filed my Self Assessment for 2023-24 on 13th June 2024 I received the Tax Calculation (SA 302) on 15th June 2024, confirming that a refund was due HMRC informed me on three follow-up calls that the refund was delayed due to "security checks" I finally received the refund on 11th November 2024 (30 weeks after SA302 was issued). I have three questions... 1. Is a Repayment Supplement (interest) due to me on the delayed refund of over-paid tax? 2. If so, from when is this calculated, 5th April 2024, or 15th June 2024? 3. If a Repayment Supplement is due, how should I claim from HMRC? Thanks in advance for your response.