No one wants to touch my Gas boiler!

My family and I have been living in a mobile for a couple years now and the gas boiler we have is in need a service badly but I cant get anyone to look at it. It is only used for hot water. Everyone that I call, when I mention it's a gas boiler, says they don't work with it. So, I don't know what to do.

It is a a Morco super compact Feb-24E. It has been leaking water. The gage bar is completely around past the 4 mark. At times I have noticed that it is completely off even though the power is on and the only way I have found to fix it is to turn the power completely off for a while, then turn it back on. Recently, It has been on but sometimes it wont run to heat up the water. Turning the power off and then back on has seemed to work so far.

I want to get it fixed before it's fucked for good.

Update:

Just so everyone knows, the people I've contacted have only been told that I have a gas boiler, no make or model, and where I am located, not that I live in a mobile.

I was excited by Optimise's link for registered gas installers in Ireland but that has been quickly replaced by disappointment.

I went and searched by county and wrote a list of all the people near my area, which was about 8 people. Out of that list 4 numbers were wrong, 2 didn't answer, and 2 I was able to leave a message but have not been called back.

I then decided to email every single person in Wexford from from RGI.ie, 20 emails in total. Two emails bounced back, 1 had an automatic response saying they are away until Feb 16th, and 1 emailed saying the soonest they can come out was in 16 weeks! That email was quickly followed up with an email saying they are too busy and can't come at all. I have yet to hear from the others I emailed.

I'll try other peoples' suggestions but this is ridiculous!