Where can I make an Offer as an investor?

Ventures fundraising on VC4Africa have the basic information of their initial offer displayed on the right side of their profile (this can only be seen by the venture owner and Pro users). Here investors can also find a link to make an offer. After clicking the link investors are asked to write a short message explaining the interest as well as to indicate the size of the investment. After agreeing to the VC4Africa terms the message is sent to the entrepreneur.