Lost and Stolen items

Q: Am I allowed to go to learn Deen or Hajj or Tabligh or other Deeni purpose? The problem, I did a few things when I was a non-Muslim but after conversion, Alhamdulillah nothing.

When I was non-Muslim, I had no bad intention, and I needed a place to live. So I had a company through which I sold webpages, design, spam services and I decided to search for a flat and I found one flat and this was an advertisement of some real estate agent, (a system that owner of flat used the service of real estate agent to get clients). So the owner of this flat was a heart doctor, so I had some money but I didn't have the third part of the rent (first payment needs to be like 3x rent, I had only two parts, if I am correct) and because of deadline I had to fake one paper of payment, so they believed that I have paid  money will be received soon (like the next day) but next day this doctor was in another country for some thing, so there was no problem for me. I didn’t pay, and after I lived like three months I didn't pay no rent and no other costs. One reason was that my company wasn't doing well to pay it. So after the third month I just moved out and I left the key and I sent an sms so and so. For now I have not heard anything of them. Not from doctor and nor from the real estate agent.

My company ordered services from an accountant and when she finished the work, then I did not pay. Now she has not contacted me but when I contacted then she said yes I owe her like 1000€ and some interest.

Before Islam, in France 2 times + other time(s) for 2 times I got judgment and I spent like a few years in jail. (2-7 years for I got 3 + 2  years alhamdulillah bigger swallowed other smaller one.)

Anyway, the problem was I bought from a seller credit card, debit card data from all over the world. (how seller gets the data/info:

1. A person is working in some pub, hotel, restaurant etc. and when the client gives credit card he swipes it also from his personal card copier, so he copies the data without client knowing it. When worker makes copies of credit card with copy machine (like papers) so he just collect the copies and sells them. He just hacks and takes anything they want. All this is done while the person does not know he is stealing. So I buy this data, and I make credit cards by using this data which I bought, so I go and use it to buy computers, and other valuable electronics, pay hotels, restaurants, and rent a car and so on, like clothes and jewellery. As this credit card data that I bought was in another continent and I paid in France and the real person paid in his own country with the real credit card, then the bank refused to give money to the businesses of France and returned the money. So when I got the judgment, they say that I need to pay 18k€ to the bank of France for damages that I have done but when I payed some little amount of money then I got receipt that I have paid the hotel that I used.

All of this was done before I became Muslim. Doesn't Islam erase all my previous life things. I became Muslim in the jail so after I came out I started to pay but now I have no money, house of my own etc. Someone is offering me to go to a Madrasah for free, can I go? He is not giving me money, just a scholarship sort of thing.

Q: I lost money from my hand bag which I failed to zip up properly when in the shop. Will this lost money be counted as a form of sadaqa for me?

Q: I took/stole some money when I was much younger and I am not sure whether I took zakaat or lillah money. Now when I am going to put the money back, what must I write on the envelope (because I'm not sure what money it was).

Q: I am 16 years old but I just wanted to ask about something. I have found money in my cupboard and I can't recall having any money or having put any money in my cupboard , it caught my eye. But I thought to myself maybe it is mine and a week later I bought something with it. I don't know what to do now? I am afraid to own up and say what I did and ask if it was anybody's here at home. What do I do about the money I used? What do I do with the change? Can I give it for sadaqah or can I maybe give it to one of my family members, maybe even my mother who might be in need of it?

Q: I am a student in Malaysia and I am doing a PHD here. Once I came to my workstation in the Lab I found a mineral water bottle on my table and then I asked from my lab fellows sitting around me. No one knew about it. Please advise me according to Sharia what should I do with this water bottle?

Q: Please I would like to know how to reimburse money that I have stolen from somebody and how about money that I have borrowed and the person cannot be found anymore?

Q: I went to Nizaamuddeen markaz to attend a mashwara. One brother gave me a pen to me to write. After sometime I forgot to give the pen to that brother [even his face also I don't remember now]. Give me a solution, what must I do?

Q: I own a shop. Sometimes, when people buy goods from me, they leave it in the shop and don’t collect it. Is it permissible for me to re-sell those items?

Q: I do transport for a company that does packaging for various other companies. I do not know the details of their agreemants. I was given a bag of products from the company as they were moving warehouse. Also the balance of the products were returned to the companies for whom this company offers their services to. Can I use these products or is it better to return them?

Q: Few years back when I was going home from office at night I found Rs.100 on the road. I was not so much aware of the Islamic path at that time and I spent the money on myself. But now I feel its a big sin and its hurting me and making me feel guilty. Please guide me what should I do now. May Almighty Allah bless us.