Sentinel 2 Level 2A older data

I’m new to Copernicus and Sentinel2 data.
I want to download some 2016 data, and I have seen, through copernicus’ user interface and through the corresponding api’s that they have a Long Term Archive, where you have to request a product in order to become available. I’ve been struggling quite a bit with this.
I am trying to get some 2016 sentinel-2 level2 data(producttype:S2MSI2A) and I just don’t get any results back.
A sample query which I am using:
RAW AND (footprint:“Intersects(POLYGON((8.682871652691398 2.1784193916848693,8.72267959283951 -2.417666879580949,13.787351095361243 -2.4320155535203156,13.748031168489904 2.159888175528991,8.682871652691398 2.1784193916848693,8.682871652691398 2.1784193916848693)))”) AND ( ingestionDate:[2016-01-20T00:00:00.000Z TO 2016-03-20T23:59:59.999Z ] ) AND ( (platformname:Sentinel-2 AND producttype:S2MSI2A AND cloudcoverpercentage:[0 TO 70]))

I’ve seen on one of their examples that they use RAW to query offline products, described here, so thought I’d use the same, but still getting no results. Am I missing something very fundamental here? I realise this may not be the best forum to ask this question - if it’s not, please can you point me to any help related to this?

Kind regards.