Very disappointing experience with Woolworths 'customer service'.

I just want to make a public criticism of Woolworths for bad customer service and unnecessary plastic packaging. The reason I am taking time to do this online is that their customer service reps have been invisible following comments/complaints I made to them directly. Initially, I wanted them to explain to me how it is that as a Woolworths Loyalty Card holder, I never get any vouchers or rewards on my app. This, despite being urged to spend enough in the store to be promoted to the 2nd tier (those spending under R30k per year). What was the point of getting onto this level ? No extra benefit at all - just a con by Woolworths to entice a shopper to spend more, on the false promise of reward. So I called and emailed them - each time, the rep I spoke to promised to follow up with me - and each time, this failed to happen. It demonstrates that either they have no answer, or they dont care - or both. Secondly, I asked them to justify their (well known) over-use of heavy plastic packaging, especially in an era when we all know that we have to cut down on plastic usage. Again, no response. Meanwhile, their CEO walks away with a pay packet well in excess of R20m. Makes you think - and in my case act: they have lost a lot of my household expenditure, I now choose to shop elsewhere for the majority of my family's needs.