My right as a wife

Assalamu alaikum wa rahmatullahi wa barakatuh, I have been married to my husband since 2019. My husband provides food, housing, and clothing, but he gives me only 500 Qatari riyals per month as personal allowance. At the same time, he gives 10,000 Qatari riyals every month to his parents and siblings. I use my entire allowance to support my sick mother, who is unable to work and has no other children to support her. My husband is aware of this, and as a result, I am left with nothing for my personal needs. My husband never disclosed his income to me. He gave me his credit card but never clearly told me that I was allowed to use it, and I believed that the card had no available balance. Later, I discovered a document indicating that his monthly salary is approximately 25,000 Qatari riyals. When his family visited Qatar, he allowed them unlimited shopping and unrestricted use of his credit card. When I tried to discuss my feelings and requested an increase in my allowance, my husband became angry. He took my gold jewelry and said he would sell it in order to give me the allowance I was asking for. The gold jewelry was purchased in 2025 using his own money. At the time of purchase, he told me that the jewelry was an “investment.” However, the jewelry was made specifically in my size, and he allowed me to wear it daily, travel with it, and keep it in my possession as my personal jewelry. After our disagreement, he stated that he would sell it. From 2019 until 2025, I did not receive a fair or reasonable personal allowance despite my husband’s financial ability. My questions are: According to Islam, is it permissible for a husband who has sufficient income to give his wife a very small personal allowance while giving a much larger amount to his parents and siblings? If a husband buys gold jewelry, tells his wife it is an “investment,” but allows her to wear it daily, travel with it, and keep it in her possession, does this jewelry become the wife’s property (hibah/gift)? Is it permissible in Islam for a husband to take back or sell such jewelry without the wife’s consent? Can gifts or jewelry replace a husband’s ongoing obligation to provide fair and continuous financial maintenance (nafaqah) to his wife? Am I sinful for asking for a fair allowance according to my husband’s financial capacity? Please advise according to the Qur’an and Sunnah. JazakAllahu khairan.