Download the app QLess. Its the check in app
I believe you have to actually go inside first and put your name on the list with their little computer. They will text you and tell you the estimated time it will take. You're allowed to leave and come back
https://play.google.com/store/apps/details?id=com.qless.consumer.app Cut and paste this link into google and it will take you to the app to download. I hope this is helpful.
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