Are completed dispatches what was used for charging or what was granted as cheap rate?

[pacemaker82]

Yesterday I plugged in my car and was granted a cheap charge timeframe of 7.30pm to 8.00am the next day (granny charging!)

At 6.15am my car finished charging to its target %. According to the integration, (planned dispatches), I still had up to 8am.

Subsequently, after 8am, the completed dispatches updated and only contains up to 6.30am (when the car finished charging). The car was not unplugged, it is still sitting outside plugged in as defined by IOG.

So, did I still get the cheap rate until 8am, and the completed dispatches are just the slots when the car charged? Or did IOG remove the 6.30-8.00 slots as cheap as a consequence of hitting the target, but didnt update the planned dispatches?

Reason this is important: I have integrations (Predbat) that rely on the planned dispatches being correct. So today I was pulling from grid between 6.30-8.00 as it assumed it was cheap, when maybe it wasnt. I assume it wasnt because you calculate the accumulation based on the completed dispatches cost.