Thank you Nicholas for your answers.
What freecc mentioned about signed up players and no depositors makes me think whether the players can’t find easy way to deposit or why they just stop at the door? I have seen that you offer quite a lot of depositing options, but maybe adding those others you list on the website (ecocard, moneybookers, etc) could solve the problem?
I have seen a very clever way of making players deposit at one of the bingo rooms, one week later after the sign-up they sent an email asking why I didn’t deposit, is there any problem they can help me with, what other options would be suitable for me to make the first deposit. I’m sure that not every player answered this, but the ones who did (and you have the email addresses on file, so you can reach them) made some points where the program can improve. I’m sure most of the players are just in a need of a helping hand to guide them through, so they can feel they are important. (And they are 
I saw the new promos on the bingo sites, they are cool, but most players won’t check out the website, if I were you, I would send out the promos in a newsletter even without updating the website
Just my 2 cents