Let us answer the Valuation question in a better more direct way, without diving to deep into forward looking statements...
...But our long term potential for growth and profitability is limitless...
Again you didn't actually answer the valuation/risk question with any of the numbers that investors care about. I'm not trying to give you a hard time. Believe me I'll be in line to sign up for your service on opening day. This isn't me being a customer, this is me as a potential investor.
Sorry for the wall of text, but please understand that we can't just come on this forum and provide every little detail of our operation...
Refusing, repeatedly, to be specific about your $12mil of the $15mil valuation, and what form that asset (capital) takes (bank loans? stocks, cash, etc..) is not a little detail. Refusing to be specific about exactly how much capital has been raised and dedicated to this project, pre-IPO, is not a little detail man. It's a huge factor used by potential investors to gauge risk vs reward. You're offering 20% of the company for 3mil, but investors want to know precisely how much of the company that capital is paying for (is that 3mil 75% of initially risked assets?).
...With a 20% stake of our company, our shareholders through Havelock Investments will receive about $760,000 which translates to a 25% ROI via dividends per share based on our IPO price of 0.15 BTC...
25% roi is more than double your prospectus' two year projection. How long before you reach these projected numbers? Five years? I'm not saying that's a bad return if we were dealing with fiat, but this is a whole new game here. One year is a lifetime in this space, and you don't project any returns at all in that time frame. My biggest hang up with your offer is your valuation, but THIS is probably the biggest hang up for most other investors.
Here's what happens in the coming year: Your tranches sell out at .15, the value of Bitcoin appreciates 50%, your stock value plummets as a result since the units are now massively overvalued. It doesn't matter if the appreciation takes weeks or months, the depreciation of your stock value will happen in lock step with the appreciation of BTC (dividends are the only way to mitigate this). Your initial investors are now screwed in every sense of the word (unless you split and keep splitting). Mining companies mitigate that risk by literally printing the money that their offering is denominated in (BTC, plus it's very easy for investors to project a return). Gambling sites mitigate that risk by offering very valuable, regularly reliable, dividends. You're competing against both of those models for investments from people who understand just how plausible this scenario is.
Supporting you appears to be exceptionally risky because the financial reward is non existent in any time frame that matters (on top of the fact that you're already (probably) way overvalued). Your offer is really only a 'good deal' for investors who believe the price of BTC will fall over the coming years. (Ironically, your company will be helping to make sure that that doesn't happen).