Astra AH replacement key fob

[Metro1288]

Hi, I'm hoping that there's still some people on here. I'm down to my last key fob (dad just lost one) and need to find a spare but don't want to pay Holden sonething ridiculous.

Would appreciate any tips or recommendations

[guy 27]

can program with opcom
can buy blank replacements off ebay cheap enough
get locksmith to cut blade.
some locksmiths can also program