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No problem. Do share screenshots of product pages and the URLs (once available) here. Will be able to help you out with this. Fixing is using canonical or meta robots is not a time taking solution to implement in general and hence, can be fixed at the last moment (before going live) as well. So, this can be parked for now.

Many thanks, all extremely helpful information! It's really appreciated. This all gives me some food for thought and it also looks like I've got some work to do! Thanks again.

You're very welcome, David. Hope it helps!

Many thanks for your reply and suggestions, you have certainly shed some light on the situation and the article mentioned was excellent, a great resource. Thanks again!

if tppmc.co.uk has never been indexed and always (from the start) been redirected then yes...

Many thanks Patrick, will give that a go!