Cheating in a sale

Q: My neighbour wanted to buy a cooking pot for R100. I told her not to buy it as I will get one for her for just R70. She agreed because she was saving R30 on the same pot. However, my intention was that I will buy the pot for just R55 and tell her that it cost R70. In this way, I will make R15 without telling her. Is this permissible?

Discharging fidyah for the deceased and settling his debts

Q: My father passed away recently. My parents were divorced since I was 7 years old. We would only meet as a family a few times a year, so now that he is gone, we are left with questions.

1. If he did not fast due to diabetes, how do we pay fidyah for him? We do not even know the number of days/months/years he did not fast throughout his 64 years of life. Is there an average or estimated amount that we should pay?

2. We understand that wealth can only be distributed after paying off the deceased's debts. However, what happens if the deceased does not have any wealth? What if the debt is too large an amount for the children to bear? Is there a guideline to this?

Remedy for depression and anxiety

Q: I have been living with depression, stress and especially with social anxiety for a long time. I am starting to lose hope and don't know what to do. It has affected my life in such a negative way. My classmates graduated 3 years ago and I am struggling with this mental illness. My grades are affected. I start to shake whenever I am sitting with a group of people. I get anxious when I get an email from school. I can't taste the sweetness of Dunya. Always living in a dark place. I got a treatment from a psychiatrist for months and finished it but it still existed. I have been making dua's and try to pray on time at work or university. But nothing helps.

P.S. It started since I moved to Europe from Africa. I cant go back to my country because of a war. And Islam is not well practiced in the country I am living right now. No righteous friends except people who pull you to haraam things. I am surviving alone. It would be much appreciated if you give some advice or remedy?

Zakaat on a joint account

Q: My wife is a housewife and does not earn an income. I provide her with an allowance as well as contribute into a savings/investment account for her.

Questions:

1. Is she liable for zakaat on the money in her investment account (which I contribute towards) or am I?

2. If we have a joint savings account (in both our names), who is responsible for the zakaat in this account?

3. Since we are married in-community-of-property, would she be responsible to pay zakaat on any investments that are in my name?

Maintaining purdah when keeping family ties

Q: What is more important: segregation between men and women or keeping family ties?

I am asking because in my native place and family, people have almost completely left the rules of segregation between men and women. So, I'm afraid to visit my family members. I have been concerned about the rules of segregation that I stopped visiting my relatives for a long time. But because of this my relations with family members became really bad, which is another bad thing in Deen.

Also, in my current situation I can't survive alone. I need help from my family to survive. I cannot stop visiting them.

Also, many of them are not able to understand my stance on this issue. Many of them are getting a bad image of Islam when I give less importance to family relations. They seem to be going further away from Deen and Imaan because of me.

So, how should I balance?

I am a weak hearted person. I may not be able to boldly oppose the malpractices when I visit my family. Also, I can't bear to see their hearts broken because of me. I am also not able to convince them of our rules.

Now, I am feeling that I should give more importance to maintaing family ties. I am feeling that I should visit them even if I may unintentionally do some sin in the process. Is this the right way to proceed?