You should wait 30 mins from the scheduled start time and call the customer repeatedly with an interval of at least 3mins. You can also leave a voice message referring to who you are and what time you arrived at the property.
If you find that you cannot reach the client after attempting several times during 30 mins from the start time, please take a picture of the door and make a print screens of your outcoming calls to the client. Send us these two photos. Then, we will close the job as ‘no show by the client’ and you will be compensated according to the terms and conditions.