Doubts regarding a leather belt

Q: I wear a trousers belt, it's leather. I don't know what kind of animal skin was used to make this leather belt. I heard that if you wear leather made with pig skin and if you pray salah with it, it wouldn't be accepted, it's nearly impossible to tell if the leather is pig skin or not because where you buy it, it doesn't says. Would my salah be valid? 

Provident fund from the government

Q: I live in Pakistan and my father is a govt servent. He is about to retire and at retirement the govt gives alot of money as provident fund. This money is actually a combination of 3 things.

1. It cuts from monthly salary for over 25 years.
2. Each month govt adds some amount to this monthly.
3. Bank adds up interest and that I also added to the amount

At retirenment all these amounts add up and given to the employee. So is it halal to do hajj with this money?

Husband claiming he issued two talaaqs whereas witnesses claim he issued three talaaqs

Q: A married couple had some marital disagreements, after which they sought the advise of a local aalim. Talaaq was pronounced. According to the husband, he said it twice but according to the aalim and another witness, talaaq was pronounced thrice. The couple wishes to reconcile, the wife is still in her period of Iddah. Can they reconcile?