Sorry for late reply.
Let me answer your question as follow.
1. Is buying 2 packages the only way if we wanted to use on 2 computers?
- The policy of Adobe customers who purchase Adobe Creative Cloud 1 seat can be install 2 machine/seat. Install both Mac or Window.
For example:
Do you have a Designer who has a computer, but he have 1 machine for productivity design and a Notebook for presenting work to their customer. He will need to install both of his Creative Cloud.
This is the flexibility of working at Adobe is.
2. Payment by cash is good.
- Yes, I'm very pleased that we met.
If you have any question please feel free to contact me.