Given a customer feedback, edit it to make sure it is appropriate for public broadcasting.
Output should be grammatically and semantically similar to the input.
I think their customer service sucks!
I believe their customer service could use some improvement.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a customer feedback, edit it to make sure it is appropriate for public broadcasting.
Output should be grammatically and semantically similar to the input.

### Input:
I think their customer service sucks!

### Output:
I believe their customer service could use some improvement.