Completely agree with @SplitEndsBushyEyebrows... if you go onto team profit website, there are step by step walk through videos, then step by step instructions for each week.
Once you get your head around it, it's pretty simple. It also tells you what all the lingo actually means if you are like me and had never made a bet in your life!
An example...
Coral has an offer of bet £10, get £30 free bets when you sign up.
So you sign up to coral, and also to Betfair exchange.
Find a game, so say Man City vs Charlton.
You bet on Man city to win with your coral account. (Your 'back bet'... you are backing this team to win)
You bet on Man city to lose with Betfair exchange account. (This is a lay bet...you are betting that they will lose)
You pick your bets based on closest odds so you lose minimal money, less than £1 (team profit explains this really well)
This bet is called a trigger bet as it triggers all of your free bets.
Do the same with your £30 of free bets, and you will make a few pounds off each bet. Do this again and again with loads of bookies and all of those few pounds suddenly start adding up.
Then you move onto more complicated things like 2ups, accumulators, low risk casino etc.
Hope that kind of explains it. Team profit definitely explain it really well and have guides for you to start of with £10, £25 or £100. Good luck if you go for it!