Hi, Ill try my best to answer your questions as clear as possible.
1) Every season (Weekly) only 1 user can back a certain team (no other players can back them if you do)
2) You are betting on the rise (gain) of the crypto team you back.
3) Every 24hrs The Points Are added to your Teams overall Points at a conversion rate of 1% = 1 Point for example XRP gains 25% in last 24hrs means XRP will have 25 points added to their overall points, coinmarketcap.com will be used as the source of market information (24hr gains) site will be updated accordingly daily at 12.00pm uk time (GMT)
4) We currently hold funds and will be manually making payments every week once a season finishes, eventually this will be automated
5) Just Like Every other site/businesses that just started we hope to build a trusting relationship between us and our users very quickly after we prove to be trustworthy and actively resolving any issue they may have
Hope this helps
Regards the FantasyCrypto team