Why aren't my new 1st class stamps selling?

Am I missing something and not listing my stamps in the correct category or is the listing title wrong? Because I'm selling my 1st class barcoded stamps for a decent discount off their actual value but I'm not even getting any views on my listing. Here's my listing: 

£135 Value Self-Adhesive Stamps: 43 1st Class Large Letter [10, 20, 30, 40, 45]

https://www.ebay.co.uk/itm/205673915510

 

I put the different numbers in the title as that's what i think people will search for such as "10 1st class stamps".

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Why aren't my new 1st class stamps selling?

have you seen the chinese documentary about fake stamps, selling underpriced!

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