How much !!

Ah, thanks

Try this

how to

You need to scroll down the page a bit to Instructions.

I don't think the manufacturers are very keen on amateurs fixing microwaves as they can be dangerous if the door does not seal properly and the microwaves get out. You may remember wartime stories (if you are old enough) that men working with radar would stand in front of the beam before going out on a hot date, to make sure there were no little consequences.

So it may be worth getting it done by a professional (same applies to the DIY sterilisations, too!)

I must be thick riverwalk I can't see on that link where it tells you how to fit it. All I see is someone asking the same question and nobody has replied.
YouTube search no good either.

DH is quiet handy but there is no obvious means of dismantling the door. Will go check YouTube. Thanks.

Having recent experience of sorting out my washing machine, I suggest you have a look at e-spares:

door latch

Cost £5-16.

And then e-how to see how to do it

replace microwave door latch

The latter says all you need is two screwdrivers!

Is it possible to buy the parts you need and fit it yourself ninathenana ?

I can't imagine it being too fussy or complicated or perhaps you have a handy friend or relative who could do it for you?

Seems a lot of money to me for something that might take a couple of minutes.

Ouch! Check if there is VAT on top, as that makes quite a difference!