Replacement bulbs for Halogen Oven Thingies

As mentioned in the place where I go for BEER and PIE (I don't do 'Tea Rooms !):

Today I have repaired a JML Halogen oven thingy - I thought the cable grip had come loose and a wire was being pulled off it's internal connection - certainly the damn thing was sparking quite alarmingly.
Disassembly was a Major PITA, and once in it was a horror story - I've never seen such a badly lashed together pile of junk.
As for the cable grip - it was in there, but had obviously never been fitted correctly.
It's back together now - correctly assembled.

However;
I'm now trying to source replacement bulbs for JML Halogen Oven Thingies.
NOT because I've broken it - it now works perfectly - but because the existing one has food splatter on it - so I suspect it won't last much longer.
Replacements seem to be made of Unobtainium - there are LOTS of threads about them on t'interweb, but no solutions yet.
It doesn't help that the JML website gives customer service email addresses that are defunct !
customer.services@jmlgroup.co.uk
seems to work - unfortunately clicking on the link on the website sends you to a different address that doesn't !

I shall persist - and I shall Prevail !

There is almost certainly a forum devoted to such things.

I haven't found it yet !

There are lots of posts on various caravanning and money and energy saving forums.
But no answers.