Have you been a  customer in your restaurant several times?

Have you been a  customer in your restaurant or in your cafe several times?

I have been a customer in your restaurant several times, haven't I?

I wonder if I have been a customer in your restaurant several times.

1. Have you been a customer in your restaurant several times?

2I have been a customer in your restaurant several times,haven't I( you)?

3 Who has been a customer in your restaurant several times?

4 How many times have you been a customer in your restaurant?

5Have you been a customer or a singer in your restaurant several times?

6 Where have you been a customer several times?