I'm having trouble getting people to actually show up for UX testing sessions. These are people who have taken the time to opt in and choose a slot for themselves. Out of 5 this week I've had 3 no-shows.

Here's my process: - an intercom message goes out to the segment I want to talk to, offering them a £25 discount code in exchange for taking part in a 30-45 minute session over google hangout - they follow the link then choose a pre-defined appointment slot on my calendar - If they choose a slot, I accept the invite on my end - I send an email asking them to confirm availability

Result: less than 50% show up

Anybody got a process that seems to work better?