Taking an oath not to talk to one's family members

Q: I recently swore upon the Quran in anger that I would not talk to my family members in a fight and if I do, may Allah punish me and give me a terrible death. Allah knows that I did it merely out of anger which I regretted instantly. But now I fear of this stupid and poor act of mines. How can I repent? Is there anyway Allah will forgive me and not punish me?

Investing in a company that distributes profits daily

Q: There is a company named B4U Global which collects amounts from people and invests it in various fields like properties, marble, motorcycles, etc.

The company divides the 60% of profit to the investors on daily basis equally while keeps 40% for their own expenses.

If you refer someone to invest in this company then they give you a small percentage of a referal bonus and profit.

In Pakistan, the government has not authorized crypto currency so they do not invest in crypto currency here.

Saturdays and Sundays are off so profit is not given on these two days.

Please guide if it is right according to Islamic laws.

Security company providing a security guard for an alcohol distribution outlet

Q: We have a security company that provides alarm systems and guards to various businesses and private residence. We had a client who signed up with us to provide a guard during the day. This client subsequently changed his business from a soft drink outlet to an alcohol distribution outlet. Is it permissible to continue providing our services to this business.