Day-to-day Extender benefit procedure

So disappointed with Discovery Health day-to-day extender benefit. I am sick now and my MSA is depleted. Discovery Health refers me to a nearby pharmacy clinic (Dischem) for consultation or virtual consultation.

I went to Dischem and was told the only available booking is for next week. This means I will not be able to use this extender benefit as I cannot predict when to sick. So disappointed...