Trouble with payment. What if a client doesn't pay? or What if there are complications during payment. Where should we ask for help?

How to convince agencies that there's a good reason for a higher rate? How to answer questions such as "is this your best rate"?

My interest is to share with other colleagues and learn from them. I am beginning in the career but have being studying all this time. Now I feel ready for the challenge.

How does a "good and right" translation is considered?