Paraphrase the following
Legally your employer can increase your range of responsibilities without increasing your compensation. You have a right to refuse to take on additional responsibilities at work. But it’s important to approach this situation carefully and professionally. If you refuse extra responsibilities because you don’t feel that you are being adequately compensated for the work you are already doing, negotiate a fair salary increase.
1 answer
Your employer has the right to assign you more tasks without giving you extra pay. You can choose not to accept these additional responsibilities at work, but it is necessary to handle the situation in a professional manner. If you decline the extra tasks due to feeling undervalued for the work you already do, consider discussing a salary increase that reflects the added workload.