Shakeoff or Shakedown!

I had many Vodabucks (VB) available (345 or 375 or somewhere around there) that I do not do anything with. I saw the puzzles available and thought that I may as well spend them doing that. So I did, which also included the 2 free per day, plus spending on the 5 @ 1VB each available per day and on the 5VB ones. The puzzles were expiring on the 8th of Feb 2021 and so I played. I found I collected many puzzle pieces and eventually, with 250-300 VB remaining I think, had collected all but one of each puzzle, of which there are 8, including: Mini Cooper 3 Door Hatch; R50k Cash Prize; R10k Cash Prize; Samsung Phone; 4G Smartphone Device; Smart Home Kit; Smeg Collection; 1 Million Megs for a Year. I also won 2 of the Mystery box prizes in that time. However, since then, I have received only 'You already have this one' messages consistently in terms of the puzzle piece collections, along with a number of vouchers. From around Monday though, the Shakeoff 2020 indicates that it is also stopping on the 8th of Feb 2021. I am now down to 69 VB remaining and still not a single win. While I realise the algorithm makes it more difficult to win, I find it disturbing that the 'fairplay' does not appear to be part of the games' makeup. They have a Winners list, but I would like to know how much money or VB one must spend to get onto that list. I feel this is a **** simply to enrich Vodacom and that the odds of winning are smaller than the National lotto, which has a far greater number of permutations. I also now see that when I buy the 1VB or 5VB, since Sunday (31 Jan 2021) I almost never win a puzzle piece and simply get useless data bundles that are never going to be used by me. I feel rather annoyed and upset that Vodacom are using this Shakeoff game as a Shakedown of customers, to entice them into the cookie jar over and over again, with no real chance of winning and, as it appears, even less chance now that it is in its final week.

It seems I am unable to attach screenshots of my near completed puzzles, but have them for record purposes, should Vodacom respond.