Deceiving in order to receive more money from a government fund

Q: I live in Holland. A friend of us is cheating the social security with his mariagal status. The point is that a married couple will get about 1200 euros from the social security, but this friend did divorce on paper so that his wife could get a seperate social security of about 1000 and he himself about 900 euros. We have advised him several times that he should stop with this and change the situation how it should be i.e. registered as married and thus in case of need only 1 social security income. The person has also 2 children from his brother in Ghana on his name and thus was also getting money for them from the law. My question is, is it aloud to report him due the cheatings he is doing, so that they will stop him. He will have to pay back the money he received unjustly.

Taking out a mobile contract

Q: There is a mobile company that has a promotion to purchase a phone in an 18 month scheme. Every month, we have to pay only 200 AED. 18x200=3600. The original price of the phone is 2700. The difference is 900. If I buy the phone at 2700 AED, then there is no calling or internet data packages. If I buy the phone on the contract, then I will get 1GB internet package, 200 local call minutes and 50 international call minutes. Is it permissible for me to buy the phone on contract?

Trimming the beard

Q: I am keeping a fist length beard Insha Allah as it is wajib. However I want to ask a question just out of curiosity regarding trimming the beard slightly shorter than a fist. Most Deobandi Ulama say it is Makrooh e Tahrimi, and if done continously it is a major sin. However in Shah Hakeem Akhtar Sahib's book it was written that to cut even a few millimetres of the beard shorter than a fist is GUNAH KABEERA (major sin)? So do you agree with Hakeem Akhtar sahib's statement?

Standing in Salaah next to a person who uses pig skin leather shoes

Q: In Europe leather men shoes have leather sole. Mostly this leather is from pork-leather since the sole has to be soft, and being soft is one of characteristic of pork-leather. Now it is that most Muslim buy such shoes and wear them. My question is since these shoes are commonly worn and we do not know exactly who wears them only that is very common, how should our behavior be in the rows of Salaah since people do stand feet to feet. Their socks do they become impure by wearing the shoes as inside the shoe there will some humidity after all, and people do touch each other with their feet i.e with the socks. Since this is a matter of Umoom al Balwaa what is the view of the Ulamaa on this issiue?