Mobile Broadband not a solution?

I will be tied to a long term contract so I got to be sure that I can have services that I need, so I emailed SmarTone-Vodafone customer service. They wrote back

Thank you for your enquiry.

We regret to inform you that File Transfer Protocol (FTP) service is unavailable from our Mobile broadband service at the moment.

This is disappointing, so my last option is 3reedom or going back to fixed line broadband.

I have also inquired at hkbn and their reply is also disappointing

我們很抱歉　閣下的住址未能列入我們現時光纖網絡的覆蓋

In fact I can see their cable pits along the road leading to where I live. I guess since the last 3 developments, including the one that I’m in, are by a rival developers hence they decided not to invest anymore further down that deadend road.