My meds expire in 4 days, I'll call at the end of next week to ask if it was extended.
My friend (in South Africa, AOR Nov 2022 2020) did upfront meds in August 2021 (her 2nd medicals were expiring in Sept 2021), up till now her new meds have still not updated. When she called IRCC she was told her meds were extended in July 2021 but not told for how long. So it seems she (and the entire family) did upfront for nothing. She's still waiting for PPR though and might still be asked for a re-med.
Maybe you should ascertain from IRCC if your meds were extended before shelling out for remeds?