Ah, Now I have a 2005 Mk 2 and wanting to err on the side of caution asked my mechanic mate who sold me the car to change the timing belt. I was corrected straight away and told they have a chain.
So emboldened with new knowledge, I asked him to change the chain.
When he stopped laughing he pointed out that the cost would be in the region of £900, and this guy doesn't rip people off.
He said that providing the correct oil is regularly changed the chain SHOULD outlast the car. I'm not 100% happy with this, knowing what the consequences of a broken chain are, but he simply reminds me that the car, immaculate I might add when I bought it back in October only cost me £500.
So I will change the oil very often and keep the fingers crossed firmly. My one and only fear is that the chain could go on a motorway or other busy road with my two dogs in the back, but check the internet and the same remark comes up, "regular oil and filter change will help to ensure the existing chain outlives the car.🤞