Assertz exchange? Equivalent to property partner?

I opened an account put a £20 in just to get a feel of it. Invested £14 and forgot about it.  Just accidentally put in £100 for the 5% offer (thought I was investing in assertz capital!). The reason I didn't rush it as there's not much available.  Property partner is in my opinion not looking like a good bet, note not expecting losses just don't think much of returns.  
Any opinions on assertz exchange! 
And moderators how about a board for assertz exchange as they are a equity investment?