Okay, the user wants me to translate "support-service" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule states that if the content is already in Thai, leave it as is. The third rule is to provide only the translation without any explanations.
So, "support-service" is in English. I need to translate it. The direct translation for "support" is "การสนับสนุน" and "service" is "บริการ". Combining them, it would be "บริการสนับสนุน". I should make sure there's no existing Thai term that's more commonly used. Sometimes, technical terms might be kept in English, but since the user didn't specify any exceptions, I'll go with the direct translation. Also, the user mentioned to output only the translation, so I shouldn't add anything else. Let me confirm once more that there's no reason to keep it in English. The user didn't mention any specific context where "support-service" is a proper noun or brand name. Therefore, "บริการสนับสนุน" is the correct translation.