TaskRabbit is an app whereby the public hires me through the app. The customer pays TaskRabbit. Then, TaskRabbit pays me.

Technically my client is TaskRabbit because I receive money from them, correct?

Should I set up one client, TaskRabbit, or should I set up a new clients each time I get a job through the app?  I'm on the Basic plan right now and have a 50 "contact" limit.  This could get used up pretty quick as I get about 10-12 new jobs per month.  

Any tips or suggestions?