updated to cover for legacy plans

pages/docs/session-replay/session-replay-web.md

@@ -14,6 +14,15 @@ Session Replay is available on each of the Free, Growth, and Enterprise plans.
 - Customers on Growth and Enterprise plans have access to 20k free replays per month.
 - Additional custom volumes of Session Replay are available as an add-on purchase for [Enterprise plans] (https://mixpanel.com/pricing/).
 
+To access free replays, customers will need to ensure they’re on the latest Free and Growth plans:
+
+- For customers on an existing **Free** plan:
+    - Ensure you switch your plan to the latest Free plan, which includes 1M monthly events and 10k session replays. You can make this switch directly from the [pricing page](https://mixpanel.com/pricing/).
+- For customers on an existing **Growth** plan:
+    - You are on the latest plan if you changed your plan volume or purchased a plan for the first time after April 2024.
+    - Otherwise, you can make the switch to our latest plan directly from the [pricing page](https://mixpanel.com/pricing/).
+- Enterprise customers should contact their account manager to determine their plan status.
+
 Customers will be blocked from viewing additional replays above their monthly limit (or custom limit, in the case of purchasing an add-on amount on an Enterprise plan) until they upgrade or purchase additional volumes.
 
 ## Using Session Replay