Originally Posted by
B747-437B
STPC entitlement is based upon fare basis, which does not change when you upgrade. Other perks such as chauffeur drive, etc... do not depend on fare basis but rather on class of service and those are included when you upgrade.
The key area that often leads to argument is the 6h vs 8h entitlement. If you book Y and upgrade to J, you will NOT receive an STPC voucher for a forced layover between 6-8h.
From the EK website, just not sure if the word "entire" negates the entitlement.
"
First Class and Business Class passengers
If the booking class for the entire outbound or inbound leg of their journey is J, D, C, I, O, F, P, Z or A.
And if upon arrival in Dubai, the connection time until the first available flight is more than 6 hours and less than 24 hours.
Long stopover expenses may also be covered in other cases, such as Skywards redemption bookings, and other rules may apply, depending on the date that the flights were booked and the fare paid."