Factory-trained technicians respond to all our calls.

"The service contract...on the whole...applied to upgrades.
Need help rewriting malfunctions ect

I'm sorry, but I don't understand your question.

Sure! Here's a rewritten version of the statement with improved clarity:

"All our calls are promptly addressed by technicians who have undergone factory training. Our comprehensive service contract encompasses upgrades and addresses various issues, including malfunctions."

When rewriting a statement, it is important to ensure clarity and coherence. Here are a few tips to consider:

1. Identify the main idea: Determine the core message you want to convey in the sentence or statement.
2. Simplify complex language: Use clear and concise language to effectively communicate the message.
3. Rearrange sentence structure: Organize the sentence in a logical manner to facilitate understanding.
4. Ensure coherence: Make sure all elements in the statement connect smoothly and convey the intended meaning.