Mixing Olaplex with platinium and meches

Hi guys, I'm using Olaplex on a couple of clients next week, one lady has the wella meches highlighting system - how much Olaplex should I use with this? I use half a tube of the cream with one of the sachets.

The other lady has L'Oreal Platinium - how much Olaplex should I use with this? As it's not a powder bleach it's a paste.

Thanks in advance [emoji1] x